Rule Breaker Investing December 2025 Mailbag: “Am I a Fool?”
9 snips
Dec 31, 2025 In the final podcast of the year, David Gardner shares his market predictions and dives into engaging listener stories. A father invests alongside his young son, while another learns valuable lessons from his selling mistakes. Key topics include the importance of letting winners run, strategic investment approaches for children, and managing position sizes. Listeners hear about behavioral insights and adapting investment habits. Ultimately, David explores what truly defines being a Fool—curiosity, resilience, and ongoing learning.
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Episode notes
Simple Market Call Wins Often
- David Gardner makes the same market call every year: 'I think the market's going up.'
- That simple stance wins two-thirds of the time versus flipping a coin.
Father And Son Investing Ritual
- Jake Dunn opened a custodial account for his seven-year-old son and lets him pick stocks while keeping a market ETF as a baseline.
- Their shared investing routine taught the child patience and long-term thinking about portfolios.
Winners Can Overwhelm Losers
- Letting winners run can mean a few big winners wipe out many losers and still leave large net gains.
- Accepting regular losses is part of a compounding portfolio strategy.
