Announcement from Ouyi on the Adjustment of Actions by MUU Perpetual Contract Company This is a general announcement, and the availability of tokens or products may vary by region. Please check the details in the application. OKX has launched perpetual contracts MUU/USDT, and its underlying MUU (Direxion Daily MU Bull 2X Shares) has announced a 20 for 1 positive stock split (with an additional 19 shares for every 1 share held). In order to maintain price consistency between the relevant perpetual contracts and the underlying spot, Ouyi will make corresponding adjustments to the corresponding contracts when the underlying stock split takes effect. Please refer to the document for detailed company action adjustment rules. This adjustment is a value neutral operation and will not change the nominal value and unrealized gains or losses of user positions. The detailed arrangement is as follows: 1. The key information items of the target stock split The target MUU (NYSE Arca: MUU, Direxion Daily MU Bull 2X Shares) company announcement date June 10, 2026 Stock split ratio MUU: 20 shares split 1 (1 share → 20 shares, additional 19 shares per share, forward share split) in the form of forward share split The starting date of price adjustment after the stock split Official announcement reference: Direxion official press release (Direxion to Split Nine ETFs, 20-for-1 forward share split) 2. Contract adjustment time contract The adjustment will be carried out simultaneously with the underlying index switching to the post split price. MUU/USDT is expected to begin adjusting around 08:30 (UTC+8) on July 15, 2026. During the adjustment period, trading of the corresponding perpetual contracts will be temporarily suspended. Please manage your positions and commissions in advance. 3、 The time of completion of the adjustment before the adjustment of the contract parameter adjustment scheme parameter indicates that the index price/marked price before the stock split automatically reflects the spot index of the underlying price following the price after the stock split at about 1/20. There is no need for manual intervention in the number of positions N (pieces/share) N × 20 According to the proportion of stock split 1:20, the average position price/average position opening price P After the adjustment, the marked price position is used to settle and close the position at the marked price before the adjustment, and then the nominal value of the position reopened at the marked price after the adjustment (position volume × price) - basically unchanged, which may cause minor differences due to rounding, and the difference remains in the account balance of the original unrealized profits and losses UPL0 Converted to realized gains and losses, included in account balance, account equity - maintain unchanged balance+unrealized gains and losses total unchanged, value neutral margin occupancy - maintain unchanged/initial margin rate recalculated at the new price, forced flat price recalculated proportionally (approximately ÷ 20), system automatically recalculated hanging orders - price and quantity adjusted proportionally, buy order price rounded down, sell order price rounded up. Please check all orders for take profit stop loss/plan orders/tracking orders/strategy orders after resuming trading - cancel or pause. Please reconfigure the contract face value/contract multiplier after resuming trading - remain unchanged. This time only adjusts the position quantity and average price accuracy/minimum change price - usually unchanged, and in rare cases may be adjusted to a lower price level after stock split. Fund rate/settlement period/trading time - remain unchanged. Maintain 8-hour settlement and 7 × 24-hour trading. 4. Risk warning: Trading suspension: During the Rebase period, all trading activities are suspended, and you cannot place, change or cancel orders. Please plan your storage space in advance. Rounding difference: During the Rebase period, prices and open positions will be aligned to price accuracy and minimum order quantity, which may result in small rounding differences that will be settled as balance adjustments. Please check your order after rebase: Please check all pending orders, take profit, stop loss, and strategy configurations after rebase is completed to confirm that your position is properly protected. Not involving equity: perpetual stock contracts are derivative contracts. Rebase does not grant you any ownership or claim rights over the underlying fund shares. The contract is only settled in cash in USDT. Advance notice: OKX will notify you before, during, and after each rebase. Please pay attention to OKX announcements and in app notifications. In case of temporary or urgent rebase, advance notice may be shortened or unavailable. OKX's discretion: In special circumstances (including but not limited to system accidents, market disruptions, or regulatory requirements), OKX reserves the right to modify, delay, or cancel planned stock consolidation adjustments. At that time, OKX will notify users as soon as reasonably feasible. Ouyi will continue to provide you with better products and services! Ouyi Team July 7th, 2026