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Our free compound interest calculator shows exactly how your savings or investments grow over time when interest earns interest. Adjust your starting balance, monthly contributions, interest rate, and compounding frequency to see the long-term impact on your wealth. Compound interest is the most powerful force in personal finance — this calculator makes it visible.
96% of actively managed funds underperform the S&P 500 over 15 years. Here's why most investors should buy the whole market, not pick winners.
Read the guide →The math says lump sum beats DCA 68% of the time. But DCA eliminates the worst-case scenario. Here's when each strategy wins.
Read the guide →Three index funds. One portfolio. Rebalance once a year. Historically beats 96% of professional investors. Here's the exact setup—and why complexity loses to simplicity.
Read the guide →Your portfolio is down $10,000. You can use that loss to save $3,000+ on taxes. Here's how tax-loss harvesting works—and the wash sale rule that trips everyone up.
Read the guide →Dividend stocks pay you cash quarterly. Growth stocks reinvest everything. Over 30 years, which strategy builds more wealth? Here's the math—and when dividends actually make sense.
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