hyperliquid-positions

Close a Hyperliquid position by sending a reduce-only IOC limit order in the opposite direction at a slippage-bounded price, reading the live size from clearinghouseState seconds before sending. Afterward, confirm whether the close was full or partial before cancelling any TP/SL orders.

Query frontendOpenOrders and look for a reduce-only trigger order on the opposite side of the position, either sized at least to the position or position-tied with isPositionTpsl set to true. Missing or undersized triggers mean the position is unprotected.

Cross margin shares the account's margin across all positions with account-wide liquidation, while isolated margin confines risk to the position's own margin, which you can add to or remove from. Some markets are strictIsolated or noCross and restrict these modes.

Max leverage is tiered by position notional: each market has a margin table listing notional thresholds with lower max leverage above each tier. Read the applicable tier from meta.marginTables rather than assuming the headline maxLeverage applies to your size.

Yes, leverage on an existing position can be raised without closing it, which frees margin and moves the isolated liquidation price; lowering it requires enough free margin to cover the higher initial margin. Always inform the user because margin usage changes immediately.