Binance Futures Will Adjust The Contract Size of USDⓈ-Margined SPCXUSDT Pre-IPO Perp (2026-06-10)
- From 08:20 (UTC), all strategy bots on this contract (Grid, DCA, Snowball) will be terminated and positions automatically closed; positions will not be restored
- Trading is suspended during the adjustment; all open orders (including reduce-only TP/SL) will be canceled; for up to 5 minutes after completion, only order cancellation will be allowed
This is a general Binance Exchange Notice and a Notice for the purposes of the Clearing Rules. Products and services referred to here may not be available in your region.
Fellow Binancians,
Binance Futures will adjust the Contract Size of USDⓈ-Margined SPCXUSDT Pre-IPO Perp commencing at 2026-06-10 08:30 (UTC). The adjustment will take 15 to 30 minutes to complete (the “Adjustment Period”). There will be a cancel-only phase which may last up to 5 minutes after the adjustment is complete. More details on the adjustment can be found in the table below:
USDⓈ-M Perpetual ContractSPCXUSDTEstimated Share Count as of 2026-05-21* 11.87 billion shares*The estimated share count is based on the listing announcement published on 2026-05-21.Revised Estimated Share Count*13.08 billion shares*The revised estimated share count is based on the amount disclosed in S-1/A (as published on the SEC website). The actual share count might be different if the issuer updates the filing before Official IPO Listing. If the difference between updated share count and revised estimated share count on 2026-06-10 before the Official IPO listing is less than 3%, no Contract Size adjustment will be made. Binance may adjust the Contract Size when a new proposed share count is available. A separate announcement will be made if Binance adjusts the Contract Size.Adjustment Scale Factor1.10
The impact of Contract Size adjustment
Example: A user has a long open position in SPCXUSDT Pre-IPO Perp with a contract size of 5,000 SPCX at average entry price at 180 USDT. The mark price 2026-06-10 08:30 (UTC) is 165 USDT.
Before the AdjustmentAfter the AdjustmentMark Price (USDT)165165/1.10 = 150Contract Size (SPCX)5,0005,000 * 1.1 = 5,500Average Entry Price (USDT)180150Unrealised PNL(165 - 180) * 5,000 = -75,0000 Notional Position (USDT)180*5,000 = 900,000150 * 5,500 = 825,000Margin Balance900,000 + (-75,000) = 825,000825,000
Note: There is a minor rounding difference in price and contract size after the Contract Size is adjusted. The price will be adjusted according to the tick size while the contract size will be adjusted to minimum trade amount.
Please Note:
At 2026-06-10 08:20 (UTC), all strategy bots created on the aforementioned perpetual contract (including Grid, DCA and Snowball) will be terminated and all positions will be closed automatically regardless whether "Close all positions on stop" is enabled or not. The position of all strategy bots will not be reinstated after the Adjustment is complete. During the Adjustment Period, a Halt Session State will be implemented and all the open orders in the aforementioned perpetual contract, including reduce-only orders (TP/SL), will be canceled. Services of the aforementioned perpetual contract such as trading, closing position, order (placement, cancellation and modification) and liquidation functions will be suspended during the Adjustment Period. It is recommended that users with open positions in the aforementioned perpetual contract re-assess their position before the adjustment to mitigate against price fluctuations that may occur.During the cancel-only phase, users are allowed to submit, modify or cancel Post-Only orders only. The duration of the cancel-only phase will be determined by Binance based on actual market liquidity and may last up to 5 minutes.The continuous Kline (candlestick) chart of the aforementioned perpetual contract before the adjustment will be retained and continued with the newly adjusted price.
The adjustment completion could be completed ahead of the schedule. API users may use GET /fapi/v1/exchangeInfo and UI users can refer to this page to check the latest trading status of the Pre-IPO Perp during the adjustment process. If the adjustment takes more than 30 minutes to complete, a separate announcement will be made. Assume the Contract Size Adjustment takes 25 minutes to complete, below is the trading status of the the aforementioned perpetual contract:
TimelineDescriptionTrading StatusBefore 2026-06-10 08:30 (UTC)Before the Contract Size AdjustmentTRADING From 2026-06-10 08:30 (UTC) to 2026-06-10 08:55 (UTC)The Contract Size Adjustment process startsTRADING_HALTFrom 2026-06-10 08:55 (UTC to 2026-06-10 09:00 (UTC)The cancel-only phase after the contract size adjustment process completesTRADING_CANCEL_ONLYAfter 2026-06-10 09:00 (UTC)The trading function resumesTRADING
This information is released in accordance with paragraph 20 of the Contract Specifications.This information specified in this notice should not be construed as financial, legal or other professional advice. For legal terms applicable to Pre-IPO Perps, please refer to the Terms of Use, the Exchange Rules (including the Exchange Procedures) and the Clearing Rules (including the Clearing Procedures). Additional terms and conditions will also be set out in the Contract Specifications.There may be discrepancies between this original content in English and any translated versions. Please refer to the original English version for the most accurate information, in case any discrepancies arise.
Further Information:
Perpetual Futures on Traditional AssetsThe Contract Size of the Pre-IPO Perp AdjustmentTrading Rules to Trading Parameter
Mark Price and Price IndexBinance Futures Contract Specification
Thank you for your support!
Binance Team
2026-06-08
Disclaimer
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