Dear customers, We are pleased to announce that ELT (Element Black) will be part of our token sale project on OKX Jumpstart starting at 2:00 am UTC on Apr. 20, 2022. I.

OKX is pleased to announce the listing of Element Black’s ELT token on our spot trading markets.

The approval management feature now allows you to view all past approvals linked to your wallet address and efficiently filter out any malicious approval poisoning. Note: After this upgrade, you may notice an increase in the number of your approvals. This is because the system now provides a more comprehensive view of your wallet’s approval history. OKX Web3 Wallet will continue to provide you with excellent products and services! OKX Team August 29, 2024

After multiple unsuccessful attempts to communicate with Element Black, the OKX team notified Element Black to carry out internal rectification and follow the Road Map disclosed prior to the listing for product delivery. Withdrawal restrictions were implemented on the ELT market-making account. During the rectification period, the Element Black team made several withdrawal requests, and OKX approved some reasonable requests, after careful review.

OKB black hole address: https://etherscan.io/address/0xff1ee8604f9ec9c3bb292633bb939321ae861b30#tokentxns) By reducing the total supply in circulation, we hope OKB supporters can benefit from the increase and stabilization of value of OKB. The amount of OKB acquired through Burn between May 4 and May 31, 2019 is 1,929,043.01 , which have already been sent to the black hole address. Regards, OKX May 10, 2019

The first event will be Midnight (NIGHT), with a total reward pool of 120,000,000 NIGHT tokens. The NIGHT token will be added to the Boost list under Markets at the end of the event. Registration period: December 10, 2025, 14:00 - December 11, 2025, 14:00 (UTC+8) Reward claim period: December 11, 2025, 18:00 (UTC+8) onwards The Boost data snapshot period for the event is from November 30, 2025 to December 9, 2025 (UTC+8).

We are pleased to announce that ZEC, NIGHT, BREV margin trading, Simple Earn and Flexible Loan will be enabled at 10:30 UTC on January 12, 2026. This update covers both the web and app interfaces as well as the API. The details are as follows: 1. Listing schedule ZEC/USDT, NIGHT/USDT, BREV/USDT margin trading will open at 10:30 UTC on January 12, 2026. 2. Margin trading For the details of the tiered margin level, please refer to the position tier margin schedule after official listing. 3.

Taking Uniswap’s elegant core design, SushiSwap has added community-oriented features that they believe help improve the design of the protocol, as well as provide further benefits to the actors involved.

In traditional options trading, delta and gamma, as known as BS delta and BS gamma, are derived from the Black-Scholes or Black options pricing model. BS delta measures the rate of change of the option price relative to the change of underlying price. BS gamma measures the rate of change of BS delta relative to the change of underlying price. For the OKX BTCUSD options contract, the calculation of delta and gamma is different from the traditional way.

The BTC/ETH prices of these orders are continuously updated using the Black-Scholes (BS) options pricing formula once they're placed in the order book, such that the corresponding IVs of the orders remain close to the levels you specify. The BTC/ETH prices of these orders are updated every 3 seconds in the order book. Limit orders based on USD price You can place a limit order with a USD price to specify the target price level of your options contract.

Mark Price Determined by OKX using the Black model on a real-time basis. Implied volatility is derived from market data, along with the volatility cap and floor. Creation Time Options with new expiration date are created at 8:30 UTC. Expiry Time 08:00 (UTC) on the expiration date Settlement Price Time-weighted average price of the index price during the last one hour before expiration. (The snapshot of the index price is taken at 200ms interval) Please refer to option settlement price history.

This review process depends on a large variety of factors, based on protecting our users against industry bad actors. OKX understands these processes can be frustrating, but it is necessary to protect our user's assets.

Ⓢ UM March 13, 2026, 08:00 UTC XRP-USDⓈ UM March 13, 2026, 08:00 UTC LINK-USDⓈ UM March 13, 2026, 08:00 UTC PIEVERSE-USDⓈ UM March 13, 2026, 08:00 UTC BCH-USDⓈ UM March 13, 2026, 08:00 UTC XPL-USDⓈ UM March 13, 2026, 08:00 UTC FIL-USDⓈ UM March 13, 2026, 08:00 UTC PIPPIN-USDⓈ UM March 13, 2026, 08:00 UTC SUI-USDⓈ UM March 13, 2026, 08:00 UTC ADA-USDⓈ UM March 13, 2026, 08:00 UTC ASTER-USDⓈ UM March 13, 2026, 08:00 UTC BEAT-USDⓈ UM March 13, 2026, 08:00 UTC PEPE-USDⓈ UM March 13, 2026, 08:00 UTC NIGHT-USD

After the burn, all OKB transferred to the black hole address will be automatically burned, manual OKB burns will stop, and the total supply of OKB will be fixed at 21 million.Will OKT deposits now also be exchanged at the same average closing price? Yes. OKTChain will continue operating until January 1, 2026. Before this date, you can deposit OKT to the platform at any time.

This protects your account and strategy.Order Protection Without authentication, others could access your pending orders, risking: Front-running: malicious actors could exploit your order details to manipulate prices before execution Targeted attacks: adversaries might artificially drive the market to your trigger price (e.g., stop-loss hunting), resulting in asset losses.How it works: You'll sign a verification message with your private key Your ownership is confirmed without exposing your actual