Stock Average Down Calculator
This tool helps you calculate your new average price per share (also known as cost basis) after buying additional shares of the same stock. [10]
Your Original Investment:Enter the total number of shares you currently own and the average price you paid for them.
Your New Purchase:Enter the number of new shares you are buying and the price per share for this new purchase.
Formula:The new average cost is calculated by dividing the total cost of all your shares by the new total number of shares you own. [1, 2, 4]
This calculation does not include commissions, fees, or taxes, which can affect your actual cost basis and returns. [11] Averaging down is a strategy that involves risk, as the stock price could continue to decline. This tool is for informational purposes only and is not financial advice.
See how buying more shares changes your average cost.