OITracker Cboe delayed data

Contract OI history

Back to BCSF

Jan 15, 2027 EXPIRATION

BCSF $12.50 Put

BCSF270115P00012500

Latest saved OI420Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BCSF $12.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 4662330 2026-10-02: 466 OI2026-10-05: 466 OI2026-10-06: 466 OI2026-10-07: 396 OI2026-10-08: 396 OI2026-10-09: 396 OI2026-10-13: 396 OI2026-10-14: 396 OI2026-10-16: 420 OI2026-10-20: 420 OI Oct 02, 2026Oct 20, 2026

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

BCSF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing4200
Oct 16, 2026420+24
Oct 14, 20263960
Oct 13, 20263960
Oct 09, 20263960
Oct 08, 20263960
Oct 07, 2026396-70
Oct 06, 20264660
Oct 05, 20264660
Oct 02, 2026466No prior observation