domains / families / business / position-sizer

position-sizer

separate

Calculate risk-based position sizes for long stock trades. Use when user asks about position sizing, how many shares to buy, risk per trade, Kelly criterion, ATR-based sizing, fractional-share sizing, or portfolio risk allocation. Supports stop-loss distance calculation, volatility scaling, and sector concentration checks.

When to use

• User asks "how many shares should I buy?"
• User wants to calculate position size for a specific trade setup
• User mentions risk per trade, stop-loss sizing, or portfolio allocation
• User asks about Kelly Criterion or ATR-based position sizing
• User has a small account where whole-share rounding would under-deploy a defined risk budget
• User wants to check if a position fits within portfolio concentration limits

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