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Do Mega Deals Actually Benefit Buyer Shareholders?

By Bryan Adams, CFA  |  March 28, 2018

Much of the focus on mergers and acquisitions is on mega deals that change industry landscapes (Disney/Fox, Amazon/Whole Foods, CVS/Aetna). However, these deals are typically only relevant and dissected at announcement, when the shock of a deal makes for good headlines and dinner party chatter, and everyone questions the rationale as well as impact to the competitive landscape.

Once the deal is completed though, there is little discussed in the press. From here, the consultants and academics take over, and everything becomes a study of deals—integration, metrics, synergy, and a continuous stream of buzzwords. These don’t make headlines, but they are no less fascinating.

From announcement through completion and beyond to integration, at the core of every discussion and study is ultimately an attempt to identify whether the deal will be successful. There is no shortage of success metrics, including financial (revenue growth, cost savings) and non-financial (market penetration, new customers). Relatively common internal financial metrics include ROI and IRR, that supposedly allow management to track and ensure the financial benefits of the deal are met.

For our purposes, we will focus on buyer shareholders because no one is an insider on every deal and therefore no one has direct insight into the internal deal metrics. We will look at the surviving entity, to which the acquisition benefits are supposed to accrue, assuming a successful acquisition and integration. This takes us to the single metric that all public companies have in common—a market for their shares that is supposed to incorporate all manner of information. Whether you believe in the Efficient Market Hypothesis is a discussion for another day.

Do U.S. Public Buyers in Large Strategic Acquisitions of U.S. Public Companies Generate Returns Above the S&P 500 After Deal Completion?

Filtering all strategic deals greater than $500 million between U.S. public companies since 1998 results in 1,264 transactions with an average deal size of $5.1 billion (median of $1.8 billion). From here, we can get the six-month and one-year returns for each buyer starting from the close date, and compare it to the six-month and one-year returns for the S&P 500 from the same dates.

The full results show that on average over both the six-month and one-year post-completion horizons, buyers are underperforming the S&P 500 by a wide margin.
 

six-Month

Buyer

S&P 500

Difference

 

1-Year

Buyer

S&P 500

Difference

Average

-0.82%

2.30%

-3.12%

 

Average

-1.62%

3.08%

-4.70%

Median

0.23%

3.86%

-3.63%

 

Median

-0.81%

6.85%

-7.66%

 

The chart below shows the initial comparison for all deals post-completion over one year.

 BuyerReturnsVsSP500Returns_1yearPostCompletionComparison

Condensing the analysis shows that in the last 20 years, these buyers have largely underperformed the S&P 500 over comparable periods post-closing. On a six-month return basis, buyers underperformed in 13 of the last 20 years, whereas on a one-year basis, buyers underperformed in 12 of those years.
 BuyerReturnsVsSP500Returns_1yearPostCompletionComparison_avgReturnFromClose

Expanding the view to look at deal closings by quarter, and then comparing the S&P 500 (top) with the buyer return (middle), gives us the variance (bottom). Apart from a few spikes, buyers are generally underperforming the S&P 500 on a consistent basis. 

1yearReturnsAndVariance

Though in aggregate the results don’t look promising, when the deals are analyzed by payment method the results take an interesting twist. The average return of the S&P 500 after six months and one year are positive in aggregate, and across all payment methods. 

SP500ReturnsFromMandACloseDate

However, looking at the buyer returns over those periods across payment methods shows that bulk of the underperformance originates from deals that are funded from all stock. Buyers in cash & stock deals come closest but still underperform by -0.6%, buyers in cash deals underperform by -0.9%, while buyers in stock deals underperform by -9.2%. 

BuyerReturnsFromMandACloseDate

Buyers don't necessarily make large strategic acquisitions to move their share prices, but the acquisitions are generally pitched as a quick way to build a business and gain a competitive advantage. Unfortunately, it does not look like this translates to the market as much as buyers would probably like. Shareholders invested in buyers making large strategic acquisitions may want to rethink positions rather than wait for a “big idea” to materialize in their portfolios.

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Bryan Adams

Director, FactSet M&A

Bryan joined FactSet in 2003 and is based in London. Bryan brings deep and varied experience in corporate strategy, management, financial services, international development, and enterprise content management to FactSet. As Director of FactSet M&A, Bryan develops FactSet's global M&A and corporate governance research, and works with private equity research and debt research teams to provide complete in-depth analysis to FactSet clients.

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