How the Stock Average Calculator works
When you buy a stock more than once, your average cost is the total amount paid divided by the total number of shares.
Formula: Average price = (P1×Q1 + P2×Q2 + P3×Q3) ÷ (Q1 + Q2 + Q3).
Averaging down on a falling stock increases your risk. Always decide in advance how much of your capital one stock may use.