When it comes to growth investing, Lynch advises investors to determine what "inning of the ball game" a company is in. One example he gives is a big position he opened in McDonald's (MCD -2.00%), which, at the time, was unpopular with many investors, who saw limited room for growth.
However, McDonald's surprised many people by spending the next two decades building its international footprint. During the 20-year period starting in the mid-1980s, when Lynch invested, McDonald's generated a total return of 3,000% for investors.
One of the more remarkable aspects of Lynch's investment strategy is that, unlike most highly successful investors, Lynch achieved his returns without a concentrated stock portfolio.
For example, Berkshire Hathaway's (BRK.A +0.21%)(BRK.B +0.31%) stock portfolio was worth more than $312 billion as of mid-2026 but contains fewer than 50 stocks. Not only that, the bulk of the portfolio's assets are concentrated in its five largest positions.
By contrast, when Lynch resigned as manager of the Magellan Fund in 1990, it held more than 1,000 individual stocks. The portfolio was also skewed toward small companies, where Lynch saw lots of growth potential. Still, Ford (F -1.70%) and Lowe's (LOW +2.04%) were some of Lynch's most profitable stocks.