OITracker Cboe delayed data

Contract OI history

Back to BFLY

Nov 20, 2026 EXPIRATION

BFLY $15.00 Call

BFLY261120C00015000

Latest saved OI683Oct 23, 2026
Last change0vs 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. 6853420 2026-10-02: 670 OI2026-10-05: 671 OI2026-10-06: 682 OI2026-10-07: 681 OI2026-10-08: 683 OI2026-10-09: 684 OI2026-10-13: 684 OI2026-10-14: 685 OI2026-10-15: 685 OI2026-10-16: 683 OI2026-10-21: 683 OI2026-10-23: 683 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, 2026Viewing6830
Oct 21, 20266830
Oct 16, 2026683-2
Oct 15, 20266850
Oct 14, 2026685+1
Oct 13, 20266840
Oct 09, 2026684+1
Oct 08, 2026683+2
Oct 07, 2026681-1
Oct 06, 2026682+11
Oct 05, 2026671+1
Oct 02, 2026670No prior observation