OITracker Cboe delayed data

Contract OI history

Back to BFLY

Jan 21, 2028 EXPIRATION

BFLY $15.00 Call

BFLY280121C00015000

Latest saved OI711Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $15.00 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. 7353670 2026-10-02: 725 OI2026-10-05: 725 OI2026-10-06: 727 OI2026-10-07: 723 OI2026-10-08: 724 OI2026-10-09: 735 OI2026-10-13: 733 OI2026-10-14: 733 OI2026-10-15: 707 OI2026-10-16: 705 OI2026-10-21: 706 OI2026-10-23: 711 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, 2026Viewing711+5
Oct 21, 2026706+1
Oct 16, 2026705-2
Oct 15, 2026707-26
Oct 14, 20267330
Oct 13, 2026733-2
Oct 09, 2026735+11
Oct 08, 2026724+1
Oct 07, 2026723-4
Oct 06, 2026727+2
Oct 05, 20267250
Oct 02, 2026725No prior observation