What order types are on the OSL Pro Trade?
Sep 4, 2026
1. Market Order
An order with no limit price, executed immediately at the best available prevailing price on the opposite side of the order book.
If the order cannot be fully filled due to insufficient liquidity, any remaining unfilled quantity will be automatically withdrawn.
2. Limit Order
An order to buy or sell a specified quantity at a specified limit price or better.
Matches with existing orders first; any remaining unfilled quantity will stay in the order book as a resting order.
3. Post-Only Order
A special limit order that guarantees the order will only enter the order book as a Maker order, never executing immediately as a Taker.
4. Fill and Kill (FAK)
An order that requires immediate execution at a specified price or better.