How to evaluate the gains and losses of an M&A deal?

The answers provided here are all quite good. As someone working on the buyer’s side at a private equity fund, I’d like to add a perspective from that angle. For a company, the classic objective—put simply—is to create value for its shareholders, i.e., to increase share price (including dividends). If an acquisition boosts the share price, it should ultimately improve the company’s financial statements—for instance, by increasing revenue, EBITDA, earnings per share (EPS), or free cash flow per share. Among these, EPS is the most critical metric for assessing whether an acquisition has succeeded or failed. Institutional investors generally favor relatively small, industry-parallel acquisitions of inexpensive targets, while viewing transformative acquisitions—those fundamentally altering the company’s nature—as excessively risky. Academic research on the impact of acquisitions on stock prices tends to be highly negative, especially regarding synergies, which are often deemed largely illusory. Beyond synergies, I remain skeptical of much of the complex academic literature on M&A. In the food industry—which I closely follow—many highly successful companies have been built through numerous small acquisitions. For example, Dean Foods became the largest U.S. milk company via repeated acquisitions of industry competitors; Hain Celestial evolved into a leader in the natural and organic food sector through over forty acquisitions spanning more than a decade—a classic ‘roll-up’ story frequently cited in investment circles.

Enterprise value, equity value, and purchase price

Last week, I sat in on a two-day Financial Due Diligence (FDD) training session—viewing transactions from this angle offered a refreshingly different perspective. Some of the issues discussed were ones I’d encountered early in my career, but back then my foundational knowledge was too weak for deep understanding. This holiday break gave me the perfect opportunity to revisit, organize, and reflect on them—and things now feel significantly clearer. Because FDD services primarily cater to U.S. dollar-denominated private equity funds, the analysis is tailored to their viewpoint: performing financial identification and highlighting key accounting items to lay the groundwork for final valuation—including enterprise value, equity value, relevant adjustments, and ultimately the determination of equity value (i.e., the purchase price). The conceptual formula is as follows: 1. EBITDA Compared with domestic transaction practices—where (consolidated) net profit is commonly used as the basis for valuation via P/E multiples—U.S. dollar funds prefer EBITDA as their core financial metric. Here, EBITDA refers to pro forma adjusted EBITDA (typically drawn from pro forma accounts), wherein one-off items are either excluded or added back to reflect the target company’s normalized operating performance. 2. Multiple After arriving at Adjusted EBITDA, U.S. dollar funds typically apply a multiple (i.e., EV/EBITDA) to derive enterprise value—a step colloquially referred to as ‘picking a multiple.’ But it’s not that simple. This multiple reflects the target company’s growth prospects, profitability, market size, industry barriers, and future growth potential—and must be benchmarked against comparable transactions and peer companies. From an FDD standpoint, required analyses include organic sales growth, segment-level and product-level sales and gross margin analysis, price/volume analysis, and assessment of key business plan drivers. [PS: This valuation approach relies on multiples, whereas domestic practitioners more often favor discounted cash flow (DCF) analysis. In the past, I assumed DCF looked more sophisticated, professional, and advanced—but in reality, DCF depends heavily on assumptions; minor changes to parameters can drastically alter outcomes, leaving substantial room for subjective manipulation. Especially for early-stage investments, using DCF is little more than pretentious obfuscation.] Another advantage of the multiple method is that it assumes the target operates under a debt-free, cash-free (DFCF) basis—i.e., its EBITDA is generated under ongoing operations without regard to its actual debt or cash position—thus filtering out the influence of capital structure on enterprise valuation. 3. Enterprise Value, Equity Value, Purchase Price When deriving equity value from enterprise value, several judgment-intensive steps come into play—this was one of the most valuable takeaways from the training. Step 1: Calculating Equity Value (From Enterprise Value to Equity Value)

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