Bybit’s Open Interest Gets a Major Makeover: What’s New?

Bybit, the world’s second-largest crypto exchange by trading volume, just dropped a significant update that will make its Open Interest (OI) numbers cleaner and more honest starting June 11, 2026.

The major exchange is switching from bilateral (double-counted) Open Interest to unilateral (single-counted) reporting — the same standard used by most traditional derivatives markets.

Don’t panic — your positions, margin, profit & loss, and risk exposure stay exactly the same.

The only thing changing is how Bybit displays the total Open Interest. Because they’ll now count each position only once instead of twice, the displayed OI numbers will look roughly 50% lower. It’s purely a calculation tweak, not a real drop in market activity.

Here’s the simple difference:

To keep position limits unchanged, Bybit will simply double the rate used in calculations. Everything balances out for users.

The goal is better transparency and easier comparison with other platforms. Traders and analysts will now get a more accurate picture of real market positioning instead of inflated double-counted numbers.

What’s Changing on the Platform?

API users will get two new fields: `singleOpenInterest` and `singleOpenInterestValue` (in USD). Developers should update their systems before the switch.

This is a smart, pro-transparency move from Bybit that brings it in line with global standards. While the headline OI numbers will drop, the actual market strength stays the same — just shown more honestly.

A cleaner, more trustworthy Open Interest is good news for everyone trading on Bybit.

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