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What's mark price vs last price vs index price?
X-Perps trading uses multiple price references. Understanding the difference is important because different functions may rely on different prices.What's last price? The last price is the price of the most recent executed trade in the market. It's useful for: seeing recent trade activity charting and short-term market behaviourWhat's index price? The index price is a reference price derived from...Published on Apr 15, 2026Updated on Sep 4, 2026FAQ1TradFi X-Perps vs Real Stocks FAQ
Are OKX TradFi X-Perps the same as real stocks? No. OKX X-Perps are expiry future contracts that track the economic performance of an underlying share, ETF, or commodity reference. When you trade an X-Perp on AAPL, TSLA, or NVDA, you don't own Apple, Tesla, or Nvidia shares. You hold a derivative position linked to the price movement of the underlying share.Do I own the underlying share when I...Published on Jun 9, 2026Updated on Aug 13, 2026FAQMulti-currency margin mode vs. Portfolio margin mode
Additionally, the delta position from spot assets can be included in the corresponding risk units For example, BTC spot assets in an account can be included in a BTC-USD or BTC-USDT risk unit for delta risk offsetting.Example of multi-currency margin mode vs. portfolio margin mode Note: Values are simulated using the position builder on 6th Feb 2025 Large delta neutral positions (favorable when in portfolio margin mode) Assets 10 BTC Positions BTCUSD-14Feb25 Futures: -35,000 contracts BTCUSDT PerpsPublished on Apr 13, 2023Updated on Aug 14, 2026Product documentationSpot Fees comparison: X-Perps account vs Regular account
Our fees differ for users in Europe (UE/EEA) who have opened their derivatives (X-Perps) account and for users who haven't opened a derivatives (X-Perps) account. On this page you can find the fee difference for users of different tiers and the fees for both account options and compare the costs per tier. Your VIP level is determined based on your total accounts assets in EUR or your 30-day...Published on May 18, 2026Updated on Aug 5, 2026AnnouncementsSpot margin vs X-Perps: which one should I choose?
For how adjusted equity feeds into your margin calculation, see Multi-currency margin mode vs portfolio margin mode.What does borrowing on spot margin cost? This applies to spot margin trading. Interest on a spot margin borrow is calculated and settled hourly. Four things follow from that, and they're the ones people get wrong most often: Interest is added to your outstanding debt rather than taken from the assets you're holding.Published on Sep 3, 2026Updated on Sep 3, 2026FAQX Layer FAQ
Which address should I use now, XKO vs. 0x? Product support status Guidance Products that support XKO-prefix addresses • XKO-prefix addresses and 0x EVM addresses are supported simultaneously. • Users are recommended to prioritize using XKO-prefix addresses for a better product experience.Published on Jan 29, 2026Updated on Aug 13, 2026FAQ14OKX will introduce sub-account rate limit
The existing rate limit rule per instrument ID remains unchanged and the existing rate limit and sub-account rate limit will operate in parallel. If clients require a higher rate limit, clients can trade via multiple sub-accounts. As an incentive for more efficient trading, the exchange will offer a higher sub-account rate limit to clients with account level >= VIP5 with a high trade fill ratio. The ratio is determined by the trade volume and the number of place and amend order requests.Published on Jan 10, 2024Updated on Aug 5, 2026AnnouncementsHow do I start trading X-Perps on OKX?
It covers: Placing a trade from the chart Placing a trade from the order panel Choosing limit vs market Setting take-profit / stop-loss (TP/SL) Reviewing liquidation price Cancelling an order if you change your mindBefore you place an X-Perps order Please make sure: Your appropriateness assessment is completed (required before accessing X-Perps) You have selected the correct X-Perps contract Your funds are in the correct account path (most setups require a transfer from Funding to Trading) Your marginPublished on Apr 9, 2026Updated on Sep 4, 2026FAQ1Why was my X-Perps order rejected?
Verify your available margin and account type (Funding vs Trading). Review order size, price, and trigger parameters. Check whether any risk-control or regional restrictions apply. Adjust the order and try again, if appropriate. If the issue continues, contact OK Assistant and share the details (product / contract, timestamp, order type, and a screenshot or error message if available) with our Customer support. To learn more about OKX products, visit here.Published on Apr 9, 2026Updated on Aug 5, 2026FAQWhat's a private key/seed phrase?
A seed phrase can derive all private keys — but no private key can reverse back to the seed phrase.Seed phrase vs private key Seed phrase Private key Format 12, 18, or 24 English words in a specific order A 64-character hexadecimal string Controls The entire wallet: all chains, all addresses A single address on the corresponding chain Restores All accounts in the wallet Only the assets on the address linked to that private key Use case Switching devices, restoring the entire wallet Importing a specificPublished on Aug 24, 2023Updated on Aug 4, 2026FAQ3,133How to trade X-Perps on OKX
For more details on each order type, see Basic order types .Index Price vs. Last Price vs. Mark Price Index price measures the fair spot price of the underlying asset. It's typically calculated as a weighted average of spot prices from major exchanges, which keeps the index representative and reduces the impact of anomalous price moves on a single exchange. Last price is the most recent traded price of the contract.Published on Jul 24, 2026Updated on Aug 5, 2026Product documentationX-Perps fees overview: trading fees, funding, and other costs
If your result looks different than expected, check below in your app: executed entry and exit details fees charged on executions funding payments (if applicable) time held vs relevant funding settlement times partial fills or partial closesImportant note Fee schedules, funding rates, and applicable product mechanics can change over time and may vary by product, account status, region, and platform configuration. To learn more about OKX products, visit here.Published on Apr 9, 2026Updated on Sep 1, 2026FAQ1Option Margin
Mark Price max(c * index price, c * Mark Price) * Margin Factor⁴ + Mark Price Index Coin-Margined BTCUSD Coin-Margined ETHUSD USDⓈ-margined BTCUSD USDⓈ-margined ETHUSD a 0.1 0.1 0.1 0.1 b 0.15 0.15 0.15 0.15 Min Open Order Margin 0.1 0.1 0.1 0.1 c 0.03 0.05 0.03 0.05 Margin Factor https://www.okx.com/trade-market/position/option Note: ¹ Long options do not require IMR/MMR due to the fact customers pay the full premium for the position. ² The difference between an existing short option position vsPublished on Jun 20, 2022Updated on Aug 5, 2026Product documentationHow do I enable allowlist? (app)
Whitelist vs. No-Verification Address: These settings are independent and do not affect each other. New Address Withdrawal Lock: If New Address Lock is enabled, newly added whitelist addresses cannot be used for withdrawals for 24 hours, adding extra security.Published on Jul 31, 2026Updated on Aug 5, 2026FAQ6Trading Mechanism
For partially filled orders, only the unfilled remainder can be cancelled; the filled portion cannot be reversed.Buy/Sell Mode vs. Open/Close Mode Event Contracts support both Open/Close Mode and Buy/Sell Mode. Open/Close Mode: Within the same event contract market, users can simultaneously hold both Up and Down positions. For example, holding 5 Up and 6 Down contracts at the same time. Full margin is required for all held contracts: margin for 5 Up contracts + margin for 6 Down contracts.Published on Apr 8, 2026Updated on Aug 5, 2026Product documentation