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- Bybit will move to a single-digit interest rate report starting June 11, 2026.
- The change will make the OI indicators appear lower, but the trading position, margin and risk exposure will not change.
Bybit is changing the way it offers open interest in all its markets. The Dubai-based exchange said the change will take place on June 11, 2026, moving its processes from two countries, or two sides, counting to one, one counting.
The change makes sense technically, and in a way. But it is important for traders who see open interest as a sign of strength, positioning and market volume. Bybit said the change aims to bring its reporting system closer to the methods used in international markets, where open interest is calculated once and not from both sides of the trade.
Open interest is one of the most frequently quoted metrics, sometimes very quickly. It shows the amount of exposure that remains open in the derivatives market, but the way it is calculated can change the size of the market that is visible on the screen.
For crypto traders comparing exchanges, that difference is not insignificant. A two-way reporting platform can be seen to show a higher OI than a site that uses one-way reporting, even if the trends are similar.
The displayed OI may drop, but the trading pattern remains the same
Under Bybit’s current system, comparing long and short positions can be calculated separately. With the new unilateral system, the same market activity will be calculated only once. As a result, apparent interest rates may drop by as much as 50 percent, although this is a reporting adjustment rather than a reduction in the actual market.
That difference is important. Bybit said the actual location of traders, margin requirements, profit and loss calculations, position limits and exposure to risk will not be affected. In other words, the screen may show a lower OI number after June 11, but the sales book will not be reduced or changed because of it.
For professionals, however, visual relaxation is essential. Historical charts may look different before and after a trade, and trading models that consider changes in OI as an indicator or a dynamic indicator may need to change.
A sudden decrease in OI reported after June 11 should not be counted as a deduction. It might just show a new way of counting.
The position limits will also be revised to maintain the same minimum. Since the Unilateral OI is expected to be about half the number of the previous two countries, Bybit will double the amount of each agreement when calculating the limit.
This is designed to preserve the real estate market. Without that change, a low OI base can affect how the margin is used. The Bybit method refers to a change in the metric title, while the useful limits for traders remain consistent with the previous method.
API users get the new parameters before the update
Edited OI form it will appear in several parts of the platform, including Market page, a sales page logos, contract details pages, landing pages and in-app data panels. The change will apply to permanent, future and optional.
For enterprise users, developers and data vendors, the API update is an area to watch. Bybit will introduce two new features: singleOpenInterestwhich shows an open unilateral interest, and singleOpenInterestValuewhich shows the same price in dollar terms.
Those categories should help sales desks, analytics providers and risk teams cleanly separate old and new analytics. It also gives integrators time to update dashboards, backend systems and automation tools before the process changes to the public.
The broad point is comparison. Crypto-based markets have grown rapidly, but data standards still vary from place to place. OI is used to judge the amount of money, crowded places, risk of withdrawal and opinion. If the exchange calculates differently, traders can compare numbers that look similar but do not measure the same.
