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Dollar-cost averaging invests a fixed amount regularly, reducing the impact of market volatility. By buying more shares when prices are low and fewer when high, it lowers the average cost per share.

Công thức

Average cost per share = Total invested / Total shares acquired

Hướng dẫn từng bước

1Enter investment amount, time period, and price history
2Calculate shares purchased each period at current price
3Sum total spent and shares to find average cost

Ví dụ có lời giải

đầu vào

Monthly: $500, Prices: $50, $40, $60

Kết quả

Avg cost ≈ $49.17/share

vs simple average of $50

Lỗi thường gặp cần tránh

✕Confusing with buying a lump sum at average price
✕Ignoring fees and slippage

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