He manages the best-performing stock mutual fund of the past 25 years—here's his top advice for investors

Related Stories Work Google exec with 20 years of management experience on best advice for new bosses Psychology and Relationships Jim Carrey wrote himself a $10 million check before he could cash it Earn Warren Buffett: For a successful career, 'don't worry' about your salary early on Save and Invest Money coach maxes their Roth IRA at the start of every year: It's 'non-negotiable' Money Top 10 ETFs of 2025 have 'very little, if any' role in your portfolio, says expert Next Gen Investing He manages the best-performing stock mutual fund of the past 25 years—here's his top advice for investors Published Mon, Mar 16 2026 10:03 AM EDT Ryan Ermey Share Share Article via Facebook Share Article via Twitter Share Article via LinkedIn Share Article via Email Michael Lippert is the portfolio manager of the Baron Opportunity Fund. Courtesy of Baron Capital. In investing, past performance is no guarantee of future results. But if you're hoping to grow your money over the long term, there's plenty to learn from investing pros who have built lengthy and impressive track records. Earlier this year, analysts at investment research firm Morningstar identified the three mutual funds that have delivered the best performance over the 25 years that ended in 2025. The winner: Baron Opportunity Fund, which turned in a 13% annualized return. For reference, the S&P 500, a benchmark for the broad U.S. stock market, logged a 6.8% annualized return over the same period. This month marks manager Michael Lippert's 20 th year at the helm of the fund, though he's quick to share credit for Opportunity's outperformance, crediting the ethos at the firm, led by billionaire growth investor Ron Baron , as well as the work done by the team of analysts who help him choose investments for the fund's portfolio. Still, over the past quarter century, Lippert's strategy of identifying and investing in fast-growing companies benefitting from disruptive and innovative technological advances had put his fund ahe...