Hedge Mode vs One-Way Mode on Futures Exchanges

One-way mode lets you hold one position direction per futures contract, long or short, and an order against it reduces or flips it. Hedge mode lets you hold a long and a short on the same contract at the same time, and each order says which side it opens or closes. That is the whole difference between hedge mode vs one-way mode, and the choice changes how every order you send behaves.

Everything below comes from the Binance, Bybit and OKX help pages and API docs, checked on 18 Oct 2026. Menus and rules change, so confirm in your own app before you switch.

How one-way mode works

Binance describes one-way mode as holding positions in one direction under one contract. Bybit's help center says the same and adds the consequence: if you hold a long and send a sell order without Reduce-Only, the order first closes the long, and any leftover size opens a new short.

Bybit's own example: you hold a 10 BTC long and sell 15 BTC without Reduce-Only. The system closes the 10 BTC long and opens a 5 BTC short. With Reduce-Only on a 5 BTC long and a 10 BTC sell, the long closes and the extra 5 BTC is rejected, because a Reduce-Only order never increases or reverses a position.

One-way is the default on Binance and on Bybit. Binance's launch announcement for hedge mode says the position mode is one-way by default, and Bybit's help center calls one-way the default mode. OKX recommends one-way for beginners.

How hedge mode works

In hedge mode, Bybit says, your long and short are completely independent. Opening a long does not touch your short, and the reverse. You must state the direction (long or short) and the action (open or close) on every order. If you hold a 10 BTC long and open a 5 BTC short, you have both, and closing the long takes a separate Close Long order.

The figure uses made-up sizes. The same 5 BTC sell reduces your long to 5 in one-way mode. In hedge mode, an Open Short order of 5 BTC leaves both positions standing. The behavior follows the Bybit help page.

On the API side, the difference is visible in the order parameters. Binance's USDⓈ-M docs say positionSide defaults to BOTH in one-way mode, and must be LONG or SHORT in hedge mode. The same docs say reduceOnly cannot be sent in hedge mode. OKX's help page notes that placing orders by initial margin (by cost) needs hedge mode.

The rules side by side

On margin, Bybit's page says one-way needs margin for the single position only. In hedge mode with isolated margin, each side has its own margin. With cross margin, requirements are calculated at the account level and may consider both directions, so the margin can differ from one-way even with the same position sizes. We do not state any exact number, because the page gives none.

Does a hedge actually reduce risk

Binance's help page gives an example on BTCUSDT. You hold a 1 BTC long and a 0.5 BTC short. If the price rises from 22,000 to 24,000, the net result is +1,000 USDT. If it falls from 22,000 to 19,000, the net is -1,500 USDT, against -3,000 USDT for the long alone.

The arithmetic checks out: the long makes +2,000 or -3,000, the short makes -1,000 or +1,500. A hedge trades upside for a smaller loss. It does not remove the risk, and Binance states in the same article that the example is not advice and that prices can be volatile. Two open positions also mean two sets of fees. To size either leg, use the position size calculator and check where each one liquidates with the liquidation price calculator.

How to switch, and what blocks it

• Binance. Open the futures page, choose USDⓈ-M or COIN-M, open the settings icon and go to Features, then Position Mode. Binance says the mode cannot change while you hold open positions or open orders. The API call POST /fapi/v1/positionSide/dual applies to all symbols, and its docs say USDⓈ-M and COIN-M share the setting.
• Bybit. On the contract's trading page, open Trading Preferences, then Position Mode. Close the positions and cancel the open orders on that contract first, or the system blocks the switch. "Apply to All Pairs" switches every eligible perpetual and expiry pair, except pairs that still hold a position. Bybit's API docs say the configuration priority is symbol, then coin, then the system default, which is one-way.
• OKX. Go to Settings, Trading mode, Position Mode and choose One-way or Hedge. The help article does not list switching conditions, so check the app.

Which mode to use

Bybit suggests one-way for trend following, day trading and straightforward strategies, and hedge for risk hedging, arbitrage and complex strategies. If you trade one direction at a time, one-way is simpler and gives you fewer ways to send the wrong order. Hedge mode fits when you deliberately hold two sides of one contract, for example a protective short against a long you do not want to close.

Common mistakes

• Switching mode with an open position or order and getting a rejection. Close and cancel first.
• Sending a sell to close a long in hedge mode without saying Close Long, so it opens a new short instead. Bybit's page notes that opening a short does not close your long.
• Leaving a forgotten short open after you thought the trade was over, because in hedge mode closing one side does not close the other.
• Assuming a hedge is free. Both legs can be liquidated and both pay fees. Read mark price vs last price to know which price triggers liquidation.

For the order flow itself, follow the step-by-step Binance futures guide. To compare exchanges, see Binance vs Bybit for futures. If you are not sure which contract type you trade, read perpetual vs quarterly futures. More guides are in the Trader's Handbook.

FAQ

What is the difference between hedge mode and one-way mode? One-way mode holds one position direction per contract, so an opposite order reduces or flips the position. Hedge mode holds a long and a short on the same contract together, and every order names its side.

Which mode is the default? One-way on Binance and Bybit, per their own pages. OKX's help article recommends one-way for beginners but does not state a default.

Can I switch with an open position? Not on Binance or Bybit. Both require closed positions and cancelled orders first (on Bybit, for that contract). OKX's article lists no conditions.

Does hedge mode make me safe from liquidation? No source we checked says so. Each side can still be liquidated, and margin treatment depends on isolated or cross margin. Check each leg with a liquidation calculator.

Sources: Binance: What Is Hedge Mode and How to Use It, Binance: Hedge Mode Now Available, Binance API: Change Position Mode, Bybit: Difference Between Position Modes, Bybit API: Switch Position Mode, OKX: Trading settings FAQ.