Has the trend line shifted? The impact on airport valuations

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Has the trend line
                         shifted? The impact on
                         airport valuations
                         Constantinos Orphanides and Romil Radia

                         Executive summary                        In particular, the mid to late 2000s saw
                         Edinburgh Airport has been sold,         numerous transaction multiples at or
                         and a number of other high-profile       above 25 times EV/EBITDA.
                         European airports may be put up          An assessment of passenger traffic
                         for sale—making airport valuations       growth forecasts at the time of
                         a hot topic. Discussions PwC has         these transactions indicates that
                         had indicate a strong interest in        expectations were for continued
                         these assets. Clearly, understanding     traffic growth from an all-time high,
                         individual airport value drivers and     rather than a reversion to the long-
                         associated risks is key to securing a    term passenger growth trends seen in
                         good deal.                               previous years.
                         Airports are a unique class of asset.    But unlike more traditional
                         While they have historically enjoyed     infrastructure assets, airports serve
                         a moderate degree of cash flow           airlines as their primary clients and
                         certainty, they have also offered        therefore share in the fortunes and
                         greater potential for growth than more   woes of a highly cyclical industry.
                         traditional infrastructure assets.       Airport valuations are predicated on
                                                                  expected future cash flows, which are
                                                                  underpinned by passenger demand
Airports are a unique class of asset.                             for travel.
                                                                  Airport cash flows have shown
                                                                  resilience in previous economic
                                                                  downturns. But this aspect of airport
                         Against a backdrop of greater            performance may not be as immune
                         availability of credit and sustained     to wider market volatility as observers
                         passenger traffic growth, these          once thought.
                         prospects were typically reflected
                         in high enterprise value to earnings     With the onset of the global financial
                         before interest, tax, depreciation and   crisis, and as passenger traffic
                         amortisation (EV/EBITDA) transaction     weakened and growth expectations
                         multiples for European airports.         diminished, downside valuation risks

6                                                                         PwC | The “new normal” for airport investment
Airports are in the news again.                                                                                        Airport investors
                                                                                                                       Financial investors in airports such
                                                                                                                       as infrastructure or pension funds
for airports became apparent. These                            airports may gain momentum, driven                      are interested in the stable cash flows
risks were subsequently borne out by                           by the continuing eurozone crisis.                      airports offer. And they often invest
airport transaction multiples observed                                                                                 with their eye on the long term. Many
                                                               Given current and imminent airport                      focus on the internal rate of return
since 2008, which, on average, declined
                                                               deals, it’s not surprising that airport                 (IRR). They also try to enhance value
in line with traffic growth expectations.
                                                               valuations are a very current topic.                    by implementing optimal financing
Today’s market is characterised by                                                                                     structures.
modest growth expectations and
                                                               Airports are uniquely                                   Trade buyers (such as other airport
significant short-term uncertainties.
                                                               appealing assets                                        operators) try to improve operational
For this reason, we don’t expect to see
                                                               Many investors see airports as                          efficiencies, for example by increasing
a return to the EV/EBITDA transaction
                                                               relatively safe assets. That’s because                  commercial yields and by expanding
multiples of more than 20 times for
                                                               airports typically offer stable cash                    the airport’s route network. We are
European airports that were last
                                                               flows with the potential to realise                     observing an increasing trend of
observed in the mid to late 2000s.
                                                               significant capital gains upon disposal.                airport operators forming consortia
Instead, airport transaction multiples
                                                               Indeed, having at times enjoyed traffic                 with financial investors with the
will likely stabilise.
                                                               growth rates in excess of two times                     aim of boosting value through
We expect regional airports, which                             GDP growth, listed European airports                    operational and financial structuring
have higher traffic growth, to transact                        have on average outperformed the                        improvements.
within a range of 14 to 18 times EV/                           Eurofirst 300 index over the last five
EBITDA and larger, more mature                                 years. (See Figure 1.)                                  The key messages arising from this
airports to transact within a range of                                                                                 paper are relevant and applicable to
                                                               Even when air traffic falls during                      both trade and financial investors.
10 to 14 times EV/EBITDA.
                                                               economic slowdowns, airports can
However, once there is greater                                 still deliver growing dividends to
visibility around the strength and pace                        investors through the deferral of
of traffic recovery, nothing precludes                         operating costs and rescheduling or
observing the higher level of multiples                        reducing capital expenditure.
again in the medium term, if there are
asset-specific reasons to justify this.
This article explores the trends in UK                         Figure
                                                                Figure1:1:
                                                                         Listed European
                                                                           Listed        airport
                                                                                  European       shareshare
                                                                                             Airport   price price
                                                                                                             performance
                                                                                                                   performance
passenger growth and the movement
                                                                   250
in EV/EBITDA transaction multiples
for airports over time. It also highlights
airport valuation drivers and risks.                               200
Finally, we identify considerations
important for investors to take into                                   150
account when valuing airports.
                                                               Index

                                                                       100
Airports: A very current
valuation topic                                                         50
Airports are in the news again: Airport
operator BAA recently sold Edinburgh
                                                                         0
Airport to Global Infrastructure                                          Jan May Sep Jan May Oct Feb      Jun Oct      Feb   Jun Oct Mar   Jul   Nov Mar Aug Dec
Partners for £807.2 million, and the UK                                    06 06 06   07  07 07 08         08 08         09   09 09 10      10    10  11   11 11
Competition Commission confirmed
                                                                                Københavns Lufthavne A/S (CPSE:KBHL)                Fraport AG (XTRA:FRA)
an order against BAA to sell London
                                                                                Aeroports de Paris (ENXTPA:ADP)                     Flughafen Zuerich AG (SWX:FHZN)
Stansted. At the same time, partial                                             Flughafen Wien AG (WBAG:FLU)                        Listed European Airport Average
or full privatisation of state-owned                                            EuroFirst 300 - Price index

                                                               Source: Datastream and Capital IQ

Has the trend line shifted? The impact on airport valuations                                                                                                          7
UK traffic: Reversion                       Figure
                                             Figure2:2:
                                                      UK airport
                                                        UK       traffic
                                                            airport      andand
                                                                    traffic GDPGDP
                                                                                growth
                                                                                    growth
to trend?                                                  250                                                                                                       100%
                                                                                                                                                                       90%
Tracking growth against the
                                                                                                                                                                       80%
trend                                                      200
                                                                                                                                                      Through
                                                                                 Through                    Through                                                    70%
Figure 2 shows UK terminal passenger                                              to trend                   to trend                                 to trend
traffic (“pax”) since 1976, with the                                                                                                                   ? years         60%

                                           Pax (million)
                                                           150                   4–5 years                  5–6 years
long-term passenger growth trend                                                                                                                                       50%

superimposed.                                                                                                                                                          40%
                                                           100
                                                                                                                                                                       30%
The graph shows that up until 2008,
                                                                                                                                                                       20%
it typically took four to six years for                     50                                                                                                         10%
traffic to return to the long-term
                                                                                                                                                                        0%
passenger growth trend following a
recession or other economic shock.                          0                                                                                                         -10%
                                                                 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

Thanks to these patterns, it has
                                                                       UK terminal pax                   UK real GDP growth (%)
often become conventional wisdom
                                                                       UK pax growth (%)                 Long-term UK pax trend
that traffic growth and associated
airport cash flows will revert to the         Source: CAA, IMF, PwC analysis
long-term trend after a shock rather
than grow at a similar rate from a
lower base. Indeed, between the late        Figure
                                            Figure3:3:UK
                                                       UKairport traffic
                                                           airport       andand
                                                                    traffic  European transactions
                                                                                European   transactions
1990s and mid 2000s, UK traffic saw                        350                                                                                                    35.0x
significant growth above the long-
term trend. This was fuelled by a                                                                                                                                 30.0x
sustained period of economic growth,                       300
                                                                                                        2006–2008 Avg.
greater availability of credit and the

                                                                                                                                                                           EV/EBITDA multiple
                                                                                                                                                                  25.0x
                                                                                                            22.4x
emergence of low-cost carriers (LCCs).
                                           Pax (million)

                                                           250                                  2000–2005 Avg.
                                                                                     2000–2002 Avg. 17.1x                                                         20.0x
                                                                                         15.0x
                                                                                                                    2009–2011 Avg.
Growth expectations and                                    200                                                          14.2x
                                                                                                                                                                  15.0x

transactions                                                                                                                                                      10.0x
Figure 3 shows actual UK passenger                         150
traffic alongside UK traffic                                                                                                                                        5.0x

expectations in 2007, the last full year                   100
prior to the global economic crisis.                                 1998    1998    2000    2002    2004        2006   2008    2010    2012     2014     2016

In 2007, the expectation was that UK                                   UK terminal pax                 European airport transaction multiples
airport traffic would continue growing                                 UK pax growth (%)               Average transaction multiple
from its 2007 peak at a rate broadly in                                Long-term pax trend
line with the long-term growth trend.
With hindsight, it’s clear that 2007         Source: CAA, DIT projections, PwC analysis
                                             Note: The graph above combines European transaction and UK traffic data as European traffic information
passenger growth expectations did not        dating back to 1976 was not available
materialise.
Take a look at the EV/EBITDA
                                            2000s, peaked in around 2007, and on                                    growth, with the simple relationship
multiples between 2000 and 2012 for
                                            average, have fallen since.                                             being that the greater the growth
European airports in Figure 3. There
                                                                                                                    potential, the higher the multiple.
are obvious challenges in comparing         Perhaps unsurprisingly, passenger
transaction multiples between               numbers in the UK have seen a similar                                   In the case of airports, a primary
airports, due to each airport’s specific    pattern. The upshot of this analysis                                    driver of earnings growth potential is
operations and individual growth            is relatively straightforward: at a                                     passenger growth.
potential. However, it is fair to say       basic level, transaction multiples
                                                                                                                    Back in 2006–2008, observers
that on average, airport transaction        are a function of current earnings
                                                                                                                    expected long-term passenger traffic to
multiples rose in the early to mid          and expectations for future earnings
                                                                                                                    keep growing at the rates seen in the

8                                                                                                                              PwC | The “new normal” for airport investment
What influences an airport’s value?

Discounted cash flow analysis. While transaction multiples provide useful valuation benchmarks, typically the
discounted cash flow (DCF) valuation methodology is used as the primary approach in valuing airports. This is because
airports generally have long-term projections that offer cash flow visibility. The DCF approach is also more appropriate
for differentiating between an airport’s revenue streams (aviation, retail, real estate, external operations) and the various
regulatory mechanisms under which airports operate.
Airport transaction multiples. There are clear challenges in comparing transaction multiples between airports. This
is due to each airport’s specific operations and individual growth prospects. In addition to market factors and competitive
bidding conditions at sale, key factors impacting airport value and transaction multiples include the following:
• Maturity of the airport. Most large, mature airports • Catchment area penetration. The extent to which
  have less potential for increasing traffic than smaller       an airport has penetrated its primary and secondary
  regional airports and may trade at a lower multiple. For      catchment areas affects its passenger growth potential.
  a small regional airport starting from a low passenger
                                                              • Capacity constraints. Runway or terminal capacity
  base, attracting two or three new airlines can transform
                                                                constraints tend to depress an airport’s traffic growth
  the business—a prospect that’s often reflected in
                                                                potential. Alleviating these constraints may require
  transaction multiples. Conversely, larger airports tend
                                                                significant capital expenditure (capex) as well as
  to have a broader airline base, so they’re less vulnerable
                                                                planning and regulatory approval.
  to customer concentration risk and volatility.
                                                              • Airport traffic mix. The makeup of an airport’s
• Potential for yield improvements. Airports with
                                                                traffic—the mix of domestic short- and long-haul
  nonaeronautical revenues that are lower than those of
                                                                as well as business, leisure, charter and low-cost
  comparable airports can boost their earnings by improving
                                                                traffic—affects airport earnings. For example, traffic
  their retail offerings, increasing parking fees, and making
                                                                mix can strongly determine an airport’s commercial
  other, similar enhancements. This potential for better
                                                                revenue spend per passenger. Domestic passenger retail
  earnings can also be reflected in transaction multiples.
                                                                spending will tend to be lower than that of other leisure
• Regulatory environment. Airports are typically                and business travellers, due to shorter airside dwell
  subject to regulation when regulators see them as             time. Also, business traffic will be more resilient to an
  holding substantial market power. Regulated airports’         economic slowdown, compared to other traffic types
  risk/reward profiles differ from those of unregulated         such as charter.
  airports, and they are viewed differently by the
                                                              • Airline customer dependence. The degree of
  market—for example, investors see regulated airports
                                                                airline concentration at an airport will impact value.
  as more vulnerable to changes in regulatory regimes.
                                                                If an airport is highly dependent on one or two key
  Airports are also subject to different regulatory
                                                                airline customers, a reduction in aircraft capacity (due,
  environments in different jurisdictions. In the UK, for
                                                                for example, to reallocation of aircraft capacity across
  instance, regulated airports are allowed to earn a return
                                                                an airline’s network or airline bankruptcy) will have a
  on their regulated asset base (RAB). RAB is therefore a
                                                                material impact on the airport. Further, airports typically
  key valuation metric, and the market places significant
                                                                have to frequently renegotiate tariff increases with their
  emphasis on enterprise value to RAB multiples in
                                                                main carriers, and single airline dominance at an airport
  assessing the value of regulated airports.
                                                                will affect negotiating power.

                                                               Given the number of circumstances affecting an airport’s value,
                                                               investors need to carefully assess airports’ comparability and
                                                               adjust transaction multiples where appropriate.

Has the trend line shifted? The impact on airport valuations                                                                     9
immediately preceding years rather                                  expectation is that UK real consumer                                      sharper than that observed in previous
than revert to the long-term trend.                                 spending is likely to be broadly flat                                     periods of economic recession, a 10-to-
Put another way, they anticipated a                                 during the remainder of 2012 with                                         12-year period for reversion to the
one-off upward shift in the long-term                               only modest growth in later years.                                        long-term trend appears likely. Indeed,
traffic trend.                                                                                                                                if one were to focus on lower passenger
                                                                    The speed at which traffic may return
                                                                                                                                              growth profiles, it could be argued
These expectations were reflected                                   to the long-term trend line hinges on
                                                                                                                                              that the long-term trend line is shifting
in increasingly higher transaction                                  the pace of economic recovery. Figure
                                                                                                                                              downwards and that the premise that
multiples paid over that period. In                                 4 sets out current passenger number
                                                                                                                                              traffic always reverts to long-term
effect, investors in airports were                                  expectations for the UK aviation
                                                                                                                                              historical trends must be questioned.
willing to pay high sums for the future                             market, but also projects a range of
growth they anticipated in 2007. Once                               potential passenger growth profiles                                       Looking at current growth
investors realised that the expected                                based on forecasted UK GDP growth                                         expectations and market uncertainties,
growth wasn’t going to materialise—                                 and a range of income elasticities.                                       we don’t expect to see a return to the
and once credit markets tightened—                                                                                                            20+ transaction multiples that were
                                                                    In Figure 1, we saw that in the early
transaction multiples declined.                                                                                                               observed in the mid 2000s in the short
                                                                    1980s and 1990s, it took four to
Note: The transactions we’re talking about here relate                                                                                        term.
                                                                    six years for traffic to revert to the
to European as well as UK airports. We believe that
the two airport markets are sufficiently developed                  long-term trend after an economic                                         However, once there is greater
and similar to draw consistent insights from the data.              slowdown.                                                                 visibility into the strength and pace
                                                                                                                                              of traffic recovery, nothing precludes
                                                                    The patterns in Figure 4 suggest
Where do we go from here?                                                                                                                     seeing this level of multiples in the
                                                                    that even in a high-growth scenario,
In light of the ongoing sovereign debt                                                                                                        medium term if there are asset-specific
                                                                    passenger numbers are unlikely to revert
fears, tighter fiscal policy and credit                                                                                                       reasons to justify this. Recent evidence
                                                                    to the trend line before 2022–2024.
conditions in Europe, the pace of                                                                                                             suggests airport transaction multiples
European economic growth remains                                    Given that the drop in UK passenger                                       are stabilising.
uncertain. PwC Economics’ current                                   traffic since 2007 has been markedly
                                                                                                                                              Given current market evidence, we
                                                                                                                                              would expect higher-growth regional
                                                                                                                                              airports to transact within a range of
Figure                                                                                                                                        14 to 18 times EV/EBITDA, and larger
Figure4:4:UK
           UKairport traffic
               airport       and GDP growthto trend
                        traffic—reversion
                                                                                                                                              more mature airports in the range of
                350                                                                                               40.0%                       10 to 14 times EV/EBITDA.
                                                                                                                  35.0%
                                                                                                                                              There is certainly significant interest in
                300                                                                                               30.0%                       the airport assets coming up for sale,
                                                                                                                                              and competitive tensions may increase
                                                                                                                          Percentage growth

                                                                                                                  25.0%
                                                                                                                                              transaction multiples observed.
Pax (million)

                250                                                                                               20.0%

                                                                                                                  15.0%
                                                                                                                                              About the authors:
                200                                                                                               10.0%
                                                                                                                                              Constantinos Orphanides is an airport
                                                                                                                  5.0%                        valuations professional at PwC based in
                150                                                                                                                           London (constantinos.orphanides@uk.pwc.com,
                                                                                                                  0.0%
                                                                                                                                              +44 (0)20 7213 3929).
                                                                                                                  -5.0%
                100                                                                                            -10.0%
                                                                                                                                              Romil Radia leads the PwC airport valuations
                      1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 2024
                                                                                                                                              team in London.

                         UK terminal pax                                  UK traffic expectations in 2007 (DIT)
                                                                                                                                              Key contact for Valuations: Romil Radia, Partner,
                         Forecast UK traffic (GDP elasticity 2)           UK GDP                                                              PwC, London (romil.radia@uk.pwc.com,
                         Forecast UK traffic (GDP elasticity 1.6)         (historical and growth % forecast)                                  +44 (0)20 7804 7899).
                         Forecast UK traffic (GDP elasticity 1.2)         Pax growth (%)
                         UK traffic expectations in 2011 (DIT)            Long-term pax trend

 Source: CAA, DIT, IMF, PwC analysis

10                                                                                                                                                      PwC | The “new normal” for airport investment
1
               Cyclicality should be built into long-term

                                                                                   2
               cash flow projections
               When assessing the value of an airport, it is
               essential to recognise the cyclicality of the
               industry, consider where we currently sit in
               the economic cycle, and build sensitivities                        Airport transaction multiples are unlikely to
               into cash flow projections to reflect economic                     reach prerecession levels in the short term
               downturns and other risks. Recent evidence
                                                                                  Given current growth expectations and market
               suggests that airport performance is not as
                                                                                  uncertainty, we do not expect to see a return to
               immune to wider market volatility as perhaps
                                                                                  the transaction multiples of more than 20 times
               was once thought.
                                                                                  EV/EBITDA for European airports in the short
                                                                                  term. However, once there is greater visibility into
                                                                                  the strength and pace of traffic recovery, nothing
                                                                                  precludes observing this level of multiples again in
                                                                                  the medium term, if there are asset-specific reasons
                                                                                  to justify this.

                  3
                                    A comprehensive assessment of comparable transaction multiples
                                    is required if used as valuation benchmarks
                                    While airport transactions clearly provide useful valuation benchmarks, it is
                                    imperative to undertake a comprehensive assessment of the comparability of
                                    transactions and make appropriate adjustments if it becomes apparent that
                                    they are incorporating different, or even unrealistic, growth expectations.

                                                               4
                                                                   Reversion to the long-term passenger traffic trend
                                                                   will take several years
                                                                   An assessment of historical UK passenger traffic suggests
                                                                   that growth rates are not constant. With potentially a 10-to-
                                                                   12-year period before traffic reverts to historical passenger

                  5
                                                                   growth trends, it seems timely to revisit the premise that
                                                                   traffic always reverts to long-term trends.

               Airport operators and financial investors are
               increasingly joining forces to deliver airport value
               improvements
               We are observing an increasing trend of airport operators
               forming consortia with financial investors with the aim of
               delivering value enhancement through operational and
               financial structuring improvements. The key messages
               arising from this paper are relevant to both trade and
               financial investors.

Has the trend line shifted? The impact on airport valuations                                                                             11
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