It’s Sunday today. The U.S. stock market is closed, but if you’re using bStocks as margin collateral, don’t assume that “the collateral price is stuck at Friday’s closing price.” According to Binance’s official announcement, starting 2026-10-24 00:00 (UTC), the bStocks collateral index price will be dynamically updated 7×24. Margin Level and uniMMR may change over the weekend or during market holidays. bStock is not a real share.
❓ 【What did the announcement say?】
According to the Binance team announcement (2026-10-20, cross-checked against the English original and a mirror), the index calculation methodology has changed to improve the continuity of collateral valuation. The aim is to keep price anchors in place even during weekends, holidays, and daily maintenance periods when traditional markets are closed.
During non-trading hours, the index is calculated in Orderbook EWMA mode using Binance quotes. A dedicated price movement cap is also applied during this period to prevent unusual volatility. The announcement does not specify a fixed numeric cap, so I’m not providing one here. See the methodology document.
When exiting EWMA mode, the index from the previous mode and the index from the new mode are blended using a weighted average to prevent a sudden jump.
The announcement explicitly says that collateral value is updated every 24 hours along with the index, and that Margin Level and uniMMR may change even during non-trading hours. It also warns users to manage their own risk, since prices may move significantly when the market reopens.
❓ 【How is this different from the old assumption that collateral “stops moving” over the weekend?】
Before, when external stock prices weren’t available, it often felt as though the price stayed close to the last valid price. This time, the notice indicates that the Binance order-book-based index will continue to move during those periods too.
So you may wonder, “Why is my Margin Level different from yesterday when it’s Sunday?” Before assuming it’s a bug, check whether the collateral index is being updated 7×24.
A movement cap doesn’t mean “liquidation can never happen over the weekend.” On the contrary, the announcement says to monitor your account even during non-trading hours.
❓ 【What should I check in the app right now?】
If you use bStocks as collateral in a margin or unified account, take a look at your Margin Level, uniMMR, and liquidation distance (or a similar metric) over the weekend too. Let go of the assumption that “the market is closed, so the collateral value is fixed.”
Collateral ratios and parameters may change at any time, and the announcement says to check the latest values on the Margin Data page. This post does not encourage buying, selling, or increasing leverage.
bStocks may not be available to you depending on your region and eligibility. Access is restricted to permitted jurisdictions, such as ADGM, and eligible users. bStock ≠ ownership of the underlying real shares.
❓ 【Quick Q&A】
Q. Can I be liquidated over the weekend?
A. According to the announcement, collateral value and Margin Level/uniMMR may change even during non-trading hours. Don’t assume that “weekends are safe.”
Q. What is Orderbook EWMA?
A. It’s described as a mode used during non-trading hours that smooths Binance quotes around the Impact Mid using an EWMA to determine the index. See the official collateral index methodology for the detailed formula.
Q. Is this post telling me to buy bStock?
A. No. It’s an informational post summarizing a collateral index update. It makes no recommendations and gives no price targets.
Risk: As today shows, bStocks collateral value and liquidation distance may change even over the weekend. Crypto and tokenized securities carry price, liquidity, regulatory, and liquidation risks, and you could lose your entire principal. Based on the Binance English announcement (2026-10-20, effective 2026-10-24 00:00 UTC) and methodology; not a recommendation to trade.