Use this stock average calculator to combine multiple share purchases into one average cost per share, total shares, and total cost basis.
This estimate combines purchase lots only. It does not adjust for fees, taxes, stock splits, wash sales, or partial sales.
This calculator is for general estimation only and does not provide financial, investment, tax, or legal advice. It does not recommend averaging down, averaging up, buying, selling, or holding any security. Actual cost basis and tax reporting can vary with broker methods, account type, corporate actions, transaction history, and local rules. Use official broker and tax records, and consult a qualified professional for decisions tied to your circumstances.
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