Order types
For Pro mode (orderbook perpetual contracts)
Aster Pro supports several order types to give traders more control over how and when their trades are executed.
Order types
Market Order
Executes immediately at the best available price. Used when speed is more important than exact price.
Limit Order
Lets you choose the price you want to buy or sell at. The order will only be filled if the market reaches that price or better.
Stop Limit Order
Becomes a limit order once a stop price is reached. It will only be filled at the limit price or better. Useful for precise control, but may not fill in fast-moving markets.
Stop Market Order
Becomes a market order once your stop price is hit. Guarantees execution, but not price — often used to exit quickly during high volatility.
Sets a stop price that follows the market as it moves in your favor. If the price reverses by a set percentage, it triggers a market order.
Post Only Order
Places a limit order that is only added to the order book if it doesn't match immediately. If it would execute right away, it's canceled. This is often used to avoid taker fees and ensure maker rebates.
Order modifiers
Order modifiers appear just below the fields where you enter your order size and price.
TP/SL (Take Profit/Stop Loss)
Optional settings when opening a position:
Take Profit (TP): Closes your trade once a target price is reached, securing gains.
Stop Loss (SL): Closes your trade if the price moves against you, limiting potential losses.
You can set TP/SL based on either the mark price (Mark) or the last traded price (Last).
Reduce-Only
Ensures the order can only decrease or close your position. It won’t open or add to a position. Prevents your position from increasing unintentionally.
Time-in-Force (TIF) Options
GTC (Good 'Til Cancelled): Order remains open until it is filled or manually cancelled.
IOC (Immediate or Cancel): Fills as much as possible immediately; cancels any unfilled portion.
FOK (Fill or Kill): Must be filled completely right away or it is cancelled entirely.
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