OITracker Cboe delayed data

Contract OI history

Back to BULL

Jan 15, 2027 EXPIRATION

BULL $12.50 Put

BULL270115P00012500

Latest saved OI130Oct 23, 2026
Last change-144vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BULL $12.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,8401,4200 2026-10-09: 2,840 OI2026-10-13: 2,530 OI2026-10-14: 2,530 OI2026-10-15: 2,530 OI2026-10-16: 2,200 OI2026-10-21: 274 OI2026-10-23: 130 OI Oct 09, 2026Oct 23, 2026

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

BULL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing130-144
Oct 21, 2026274-1,926
Oct 16, 20262,200-330
Oct 15, 20262,5300
Oct 14, 20262,5300
Oct 13, 20262,530-310
Oct 09, 20262,840No prior observation