Public serial acquirers like Constellation Software exploit a valuation arbitrage. They buy private niche businesses at low multiples (e.g., 5x EBITDA) which are then automatically revalued at the parent company's much higher public market multiple (e.g., 28x EBITDA), creating significant shareholder value on day one.

Shelby Davis's core strategy involved buying stocks where earnings would increase and, in parallel, the market would re-rate the stock with a higher P/E multiple. This dual effect created exponential returns far beyond what earnings growth alone could provide, turning a good investment into a multi-bagger.

A specific arbitrage opportunity exists with serial acquirers. When they announce a deal that will significantly increase future earnings per share, the market often under-reacts. An investor can buy shares at a compressed forward multiple before the full impact of the acquisition is priced in.

Acquiring smaller companies at a 5-6x EBITDA multiple and integrating them to reach a larger scale allows you to sell the combined entity at a 10-12x multiple. This multiple expansion is a powerful, often overlooked financial driver of M&A strategies, creating value almost overnight.

A powerful investment pattern is the "Good Co./Bad Co." combination. The market often nets out a profitable division and a losing one, undervaluing the whole. When the losing division is shut down or spun off, earnings can double overnight, forcing a dramatic stock re-rating.

During the 1980s bubble, Japanese firms engaged in "Zytec," using profits from financial speculation to boost reported earnings. This created a circular feedback loop: rising share prices increased their ability to raise cheap capital for more speculation, which in turn fueled share prices even higher, detaching them from operational reality.

Conglomerates like Litton Industries relied on their high stock price as currency for acquisitions. When the market turned and their stock fell, they could no longer afford to buy growth. This revealed a lack of true operational excellence, causing a vicious cycle of stock price collapse and multiple compression.

During a market crash, Henry Singleton stopped acquiring companies and did the opposite: he used cash to buy back 90% of Teledyne's stock. While Wall Street saw this as failure, it was a rational trade—repurchasing his own company's earnings at a low multiple—which caused earnings per share to explode.

The current M&A landscape is defined by a valuation disparity where smaller companies trade at a discount to larger ones. This creates a clear strategic incentive for large corporations to drive growth by acquiring smaller, more affordable competitors.