Peter Lynch’s Investing Tip: If an 11-Year-Old Doesn’t Get It, Maybe You Don’t Either

October 5, 2025

Renowned investor Peter Lynch has reiterated his long-standing belief in the importance of understanding one’s investments.

Lynch, who famously managed Fidelity Investment’s Magellan Fund FMAGX from 1977 to 1990, emphasized that investors who do not understand their investments are at risk.

Lynch, who began his career as an intern at Fidelity in the 1960s, made these remarks during a recent interview. He highlighted the importance of understanding a company’s business before investing in it, stating that an investor should be able to succinctly explain their reasons for owning a company’s shares.

Lynch also discussed the changes in the investment landscape over the years, including the decrease in publicly traded companies and the evolution of trading tools and information availability. Despite these changes, Lynch believes the fundamentals of investment have remained the same.

“Play the market is not what you do. You buy good companies, and you have to know what they do,” Lynch said.

He also said that an investor should be able to “explain to an 11-year-old in a minute or less” what the case is for owning shares of a particular company.

Also Read: Investment Guru Peter Lynch: ‘Often Great Investments Are The Ones Where Everyone Else Will Think You Are Crazy’

During the conversation, Lynch expressed uncertainty about whether the AI boom is similar to the dot-com bubble of the late 1990s. He maintains that average investors can perform as well as Wall Street investors if they look for opportunities in the right places.

Despite the significant changes in the Wall Street landscape, Lynch sees many improvements for modern investors, with numerous safeguards in place that were not available to previous generations.

Lynch’s comments underline the importance of knowledge-based investing. His belief that understanding a company’s business is crucial to successful investing is a reminder to investors to do their homework before investing.

His observations about the changes in the investment landscape and the potential similarities between the AI boom and the dot-com bubble of the late 1990s provide food for thought for investors navigating today’s markets.

His assertion that average investors can perform as well as Wall Street investors if they look in the right places is an encouraging message for individual investors.

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