Stock Average Down Calculator
Blend an existing position with an additional purchase.
Calculate stock average down calculator from clear inputs
Stock Average Down Calculator gives a focused worksheet for finance & money questions where a quick deterministic estimate is more useful than a spreadsheet. The stock average down calculator fields mirror the variables in its formula, and the output separates the main result from supporting values so you can sanity-check this calculation before reusing it.
100 shares at 42 plus 50 shares at 36 creates 150 shares at a 40 average cost.
Keep the estimate private in your browser
For Stock Average Down Calculator, every calculation runs in your browser with no upload, account, cookie, live lookup, or server-side storage. The stock average down calculator result is best treated as a planning number because the real-world constraints behind this estimate can change the answer. Adjust the stock average down calculator assumptions and confirm important decisions against the relevant source of truth for that exact situation.
Frequently Asked Questions
How is the new average cost calculated?
Total cost of all shares ÷ total shares. 100 shares at $42 plus 50 shares at $36 is $6,000 for 150 shares, a $40 average.
Does averaging down reduce risk?
No. It lowers your break-even price but increases the amount invested in the same position. It only helps if the original reason for owning the stock still holds.
Does the average include commissions?
No. Add any fees to the buy price per share if you want your true cost basis.
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