For the latest and most accurate information on applicable fees, please refer to your local OKX fee page.Key Changes Update and Alignment of Group 1 Token Pairs for Spot and Futures The USDT and USDⓈ pairs for the following tokens will be placed under Group 1: BTC / DOGE / ETH / PEPE / PUMP / SOL / SUI / XRP / ADA / LTC PENGU pairs in Spot Group 1 will be moved to Group 2 insteadSpot Markets - Group Definitions Group Description Pairs Group 1 Top Pairs ADA-USDT,ADA-USDⓈ,BTC-USDT,BTC-USDⓈ,DOGE-USDT

In order to provide a more secure P2P trading environment, we have added a lifetime P2P trading amount limit for KYC 1 users. The lifetime P2P trading amount is 5,000 USD for buying in P2P and Express. The accumulation of the lifetime P2P trading amount starts on April 12th. For KYC 1 users, if the trading amount is higher than the maximum limit, users will be redirected to the KYC page to upgrade to KYC 2. We apologize for any inconvenience caused.

Campaign details 1. Eligibility Complete identity verification Stake at least 1 TON to be eligible to receive airdrop rewards 2. Rules Before the campaign starts, we'll take a snapshot of your TON On-chain Earn subscriptions on July 10, 2024 at 6:00 am UTC. This snapshot will determine your baseline holdings. We'll take daily snapshots at 6:00 am UTC of your On-chain Earn subscriptions during the campaign period.

Contract Type Relationship between S (final settlement price) and K (strike price) ITM/ATM/OTM Call options S>K ITM SK OTM S=K ATM 2. OKX Options Contract Specification Contract Type Call and Put Exercise Style European options Contract Expirations 1, 2, 3, 4 dailies 1, 2, 3 weeklies 1, 2, 3 monthlies 1, 2, 3 quaterlies of the March, June, September and December cycle.

So this contract was successfully exercised， and the profit/loss generated was as follows: Face Value * Contract Multiplier * Amount of Holding Positions * (Strike Price – Exercise Price)/ Exercise Price= 1 * 0.1 * (-100) * (600 - 580) / 580 = -0.34483 ETH After the contract was exercised, the short position of options contract ETHUSD-20201204-600-P was closed, and the account balance of user K was reduced by 0.34483 ETH (regardless of transaction fees).

On the trading screen, select Settings from the top menu Proceed with the selection of Settings from the pop-up menu On the Trading mode screen, select Spot cost price type Select between Average cost price or Cumulative cost price Select from the available options under the Spot cost price type options The cost price will also be reflected on your K-line Chart and the positions menu. Cost price on the K-line chart Cost price on the positions menu

For example, Uniswap uses a simple x*y= k equation to set the relationship between the particular assets held in the liquidity pools. Here, x and y represent the amount of the tokens respectively, while k is a constant. Note that Uniswap's x*y= k is just one of the mathematical formulas used by AMMs today. The equation varies with the use case. As a result of how AMMs work, there'll always be slippages in each transaction.

*Execution trace table and Merkle tree constructed for zk-STARK PoR* 1.

Links created on or after January 1, 2026 will be assessed from the fourth calendar month upon link creation. Note: Links created before January 1, 2026, will continue to be assessed starting from the first day of the third calendar month after the link is created. Examples: A link created on August 1, 2026 will be assessed starting from November 1, 2026, and subsequently on the 1st day of each calendar month.

As a result, the calculation window will be shortened from 1 hour to 30 minutes. For the avoidance of doubt, 18 March 2026 will be the first day on which the 30-minute calculation window will apply. OKX reserves the right to make further adjustments to the price calculation methodology with prior notice. OKX Team March 06, 2026

Promotion Period December 24, 2025, 12:00 UTC+7 – January 1, 2026, 23:59 UTC+7 Starting January 1, 2026, the Diamond Merchant deposit requirement will return to the standard 1,000 USDT. Who’s eligible To participate in the promotion, make sure you meet the following criteria: Your account is registered in Indonesia. You are a Lite user or Super Merchant before the promotion start date.

As a result, the calculation window will be shortened from 1 hour to 30 minutes. For the avoidance of doubt, 18 March 2026（UTC+8）will be the first day on which the 30-minute calculation window will apply. In addition, any calculations that rely on such averaged prices (for example, Delta decay and other related parameters) will be updated accordingly. OKX reserves the right to make further adjustments to the price calculation methodology with prior notice.

The rise and fall value of the latest transaction price compared to the opening price of the K-line 24 hours ago/100% of the opening price of the K-line 24 hours ago. The above formula data can be obtained through the market interface here. What's the reason for the error message "51000 Parameter posSide error" when placing an order? You need to check the account mode first; buying and selling mode/opening and closing mode, which can be viewed here to obtain posMode.

To subscribe to XAUT Dual Investment, follow these steps: 1. Go to Explore > Dual Investment > View more 2. Expand XAUT and select “Sell high” or “Buy low” 3. Select your preferred term, target price and APR (annual percentage rate) 4. Enter an amount larger than the minimum subscription amount OKX team January 23, 2026

The final USDT-margined expiry futures contracts for BTC and ETH will expire on June 26, 2026. The last new contracts will be weekly expiries, listed on January 9, 2026, and expiring on January 23, 2026. Thank you for your continued support. OKX Team December 17, 2025