Does “orderType: market” Force TradersPost to Use a Market Order?

Traders using TradersPost often wonder whether specifying “orderType: market” in their webhook will force a market order, especially if the market is closed when the order is sent.

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How Market Orders Work in TradersPost

If you set “orderType: market” in your webhook while the market is closed:

• It will not force a market order at market open.

• If the broker does not allow market orders during extended trading, the order will likely be rejected.

• The correct order type for extended hours trading is typically a limit order, as brokers restrict market orders to prevent excessive slippage.

What Happens When You Send a Market Order After Hours?

1. If extended hours trading is NOT enabled:

• The order is queued and sent as a market order when the market opens.

2. If extended hours trading IS enabled:

• The order will likely be rejected unless it is a limit order, since most brokers require limit orders for after-hours trading.

How to Ensure Proper Order Execution

• Use Brokers’ Built-in Settings – Instead of manually setting order types in JSON, configure extended trading settings within TradersPost.

• Use Limit Orders for After-Hours Trading – If you must trade outside regular hours, send a limit order instead of a market order.

• Check Broker Rules – Brokers may have different policies on market vs. limit orders during extended hours, so always verify their requirements.

Final Thoughts

Setting “orderType: market” in TradersPost does not guarantee execution as a market order if the market is closed. Instead, the order may be queued for market open or rejected if after-hours trading is enabled. Traders should use limit orders for after-hours trading and configure settings directly in TradersPost for the best execution results.