Ten stock position calculations (average cost, averaging down, DCA, dividends, DRIP, profit and loss, splits, position sizing, market cap, options at expiration) as dependency-free JS, with worked CSV test vectors and one documented rounding rule.
javascript options no-dependencies market-cap position-sizing dollar-cost-averaging cost-basis stock-calculator financial-calculators stock-split dividend-calculator average-cost
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Updated
Sep 17, 2026 - JavaScript