Averaging Down Calculator
Simulate cost basis reduction with additional purchases
Current Holdings
After Averaging Down
New Avg. Price
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Total Shares—
Avg. Price Drop—
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FAQ
What is averaging down?
Averaging down is an investment strategy where you buy additional shares of a stock after its price has fallen, lowering your average cost basis (average purchase price).
Is averaging down always beneficial?
Not always. If the stock price keeps falling, your losses can grow larger. It is generally best applied when a stock drops temporarily and the company's fundamentals remain sound.
What is the difference between averaging down and dollar-cost averaging (DCA)?
DCA involves buying shares at regular intervals from the start, regardless of price. Averaging down specifically refers to buying more shares after a price decline in a stock you already hold.
How much should I add when averaging down?
A common approach is to add 50–100% of your current position size. Adding too little has minimal impact on your average price; adding too much concentrates risk in a single stock.
At what percentage drop should I average down?
There is no fixed rule, but a common strategy is to average down after a 10–20% drop for the first buy and again after another 10–20% decline for a staged approach.
When should I avoid averaging down?
Avoid averaging down when a company's fundamentals have deteriorated—such as a sharp earnings decline, surging debt, or structural industry changes—or for highly speculative or delisting-risk stocks.
How does averaging down affect my break-even price?
Lowering your average cost also lowers your break-even price. Enter the new average as the buy price in the Stock Profit Calculator to find your exact break-even sell price.