Risk dollar amount

The Risk dollar amount method sizes the position so that your maximum loss (if the stop loss is hit) equals a fixed dollar amount.

How it's calculated

• Risk per share = |entry price − stop price|
• Quantity = risk dollar amount ÷ risk per share

Example

• quantity = 100 ($100 max loss), entry = $100, stop = $90
• Risk per share = $10
• 100 ÷ 10 = 10 shares

Configure this in your strategy under Quantity calculation method → Risk dollar amount. A stop loss is required. The stop price can come from the signal (stopLoss.stopPrice) or from the subscription's stop loss configuration. When Allow signal override next to the quantity settings (or the global Allow signal overrides) is enabled, you can override sizing in a webhook by sending quantityType=risk_dollar_amount with quantity as the max dollar risk.

{
    "ticker": "AAPL",
    "action": "buy",
    "quantityType": "risk_dollar_amount",
    "quantity": 100,
    "stopLoss": {
        "stopPrice": 90
    }
}