Orders and Positions

Common questions around orders and positiosn

Why was my order rejected?

If an order fails, read the error message closely. It usually tells you the reason. The most frequent causes are hitting some limit (OI cap, size too low, etc.) or not having enough margin.

Why can I not open a new position?

When a market is popular, you might face an open interest cap. This is frustrating, but acts as a general safety limit. You can try a different market or wait.

Why can I not place this order?

Check to ensure you have sufficient funds in your account and are meeting appropriate tick or lot size requirements. These ensure orders adhere to market parameters. For example, if a perp has a tick size of $0.5, you can’t place a limit order at $30000.25, it must be $30000.0 or $30000.5, etc.

Why does it say I don’t have enough margin?

This can occur if the market moved and your available margin decreased or if you’re trying to over-leverage. Always keep an eye on your Available Balance in the trading interface. It’s good practice to leave a cushion rather than using all collateral as margin.

Why did my post-only order not submit?

A post-only order will cancel if it would match with an existing order on the book (because that would make it a taker order). Sometimes fast market moves or your own misunderstanding of the best bid/ask can cause an immediate cancel. Adjust and try again if you really want to place a post-only order.