Take-profit and stop-loss settings are often treated as a final click after opening a futures position. OKX’s support documentation shows why that is backwards. A TP/SL order depends on a trigger price, an order price and a selected price source such as last price, mark price or index price. Those choices can decide whether the exit is protective or just decorative.
OKX describes TP/SL as a conditional order that can close a position to lock in gains or limit losses. On the app, traders can set TP/SL while opening a futures position, or add it from the open-position screen. On the web interface, the workflow is similar: enter the trade amount, choose TP/SL mode, enter take-profit and stop-loss prices, or use advanced settings such as trailing TP/SL.
The price source matters. OKX’s mark-price document explains that mark price is a reference price used for unrealized PnL and to reduce unnecessary forced liquidations during abnormal volatility. Last price is the most recent traded order-book price. Index price is built from multiple spot markets. A stop based on last price may react faster to a wick, while mark price may filter some short-term noise.
Traders should choose the trigger source according to the job of the order. If the goal is to avoid liquidation mechanics and abnormal wicks, mark price may be more aligned with risk control. If the goal is to exit when the traded market actually breaks a level, last price may be more responsive. Either way, the order price also matters because a limit exit can fail to fill in a fast market.
A practical workflow is simple: define the invalidation level first, choose whether mark price or last price best represents that invalidation, then size leverage so the account survives slippage. Adding TP/SL after the position is already emotionally uncomfortable often leads to bad settings. The exit plan should be part of the entry plan.
Risk notice: Futures trading can cause rapid losses, especially with leverage. TP/SL orders are tools, not guarantees, and may fail or fill with slippage during fast markets.
Sources: OKX TP/SL setup guide; OKX mark price and last price documentation.
原创文章，作者：financial transaction，如若转载，请注明出处：https://www.fanbi.net/archives/3542
