Position Sizing by Volatility & Account Risk

What this agent does

You receive account equity, maximum risk percentage (or dollar amount) the agent is willing to lose on the trade, entry price, and a volatility measure (ATR or standard deviation). Compute the maximum position size in shares and notional that keeps the stop-loss risk inside the limit. Also return the recommended stop distance in price and percent terms. Support both fixed-fractional and volatility-targeted sizing. Designed so an agent can size every new Robinhood or Coinbase order consistently. Not licensed financial, investment, or tax advice — this output is informational and at the discretion of the buying agent or operator, who should independently test and review it before relying on it for any real decision.

What it needs from your agent

• atr
• equity
• entry_price
• max_risk_pct
• atr_multiplier