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Coming soon: order placement over WebSocket becomes available on September 2, 2026, on the global platform only. The EU platform is not yet supported.
Fire a market order sized in the base asset when the market reaches activation_price. The trigger semantics match order_stop_market_place; only the unit of amount differs — here it is stock on a buy as well as on a sell.

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Rate limits

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Place stop-market order in stock

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Request parameters

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Response

The result object adds the conditional fields to the standard order object — see the order object reference. This method reports type 203, the stock-denominated stop-market code.
A buy spends quote currency at activation even though the order is sized in stock. The balance must cover amount multiplied by the best ask at trigger time, plus fee.

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Error codes

Standard transport errors and the shared account, rate-limit, and region codes are listed in Order Management.