OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BFLY $7.50 Call

BFLY270115C00007500

Latest saved OI3,367Oct 23, 2026
Last change-146vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $7.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,6051,8020 2026-10-02: 2,995 OI2026-10-05: 2,995 OI2026-10-06: 2,996 OI2026-10-07: 2,959 OI2026-10-08: 2,954 OI2026-10-09: 2,958 OI2026-10-13: 3,598 OI2026-10-14: 3,598 OI2026-10-15: 3,598 OI2026-10-16: 3,605 OI2026-10-21: 3,513 OI2026-10-23: 3,367 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BFLY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,367-146
Oct 21, 20263,513-92
Oct 16, 20263,605+7
Oct 15, 20263,5980
Oct 14, 20263,5980
Oct 13, 20263,598+640
Oct 09, 20262,958+4
Oct 08, 20262,954-5
Oct 07, 20262,959-37
Oct 06, 20262,996+1
Oct 05, 20262,9950
Oct 02, 20262,995No prior observation