Stock Average-Down / Average-Up Price Simulator
See exactly how many shares and how much cash you need to hit a target average price, and the rally needed just to break even
Enter your current average price and share count plus the price and quantity of a planned buy, and this tool works backward to show your new average cost, the rally needed to break even, and how many shares you'd need to reach a target average price.
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How to use
- Enter your current average price and number of shares.
- Enter the price and quantity of your additional buy to see the new average.
- Enter a target average price to see how many more shares you'd need to buy.
FAQ
- How is the break-even rally percentage calculated?
- It's the percentage gain needed from your additional-buy price (current price) up to your new average cost.
- Can I use this for averaging up too?
- Yes — enter an additional buy price higher than your current average, and the tool calculates the averaging-up scenario the same way, just with your average rising instead of falling.
- Does this account for trading fees or taxes?
- No, the calculation uses raw purchase prices without commissions or transaction tax, so your actual fill may differ slightly.