OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BULL $2.50 Put

BULL280121P00002500

Latest saved OI486Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BULL $2.50 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. 4862430 2026-10-09: 484 OI2026-10-13: 484 OI2026-10-14: 484 OI2026-10-15: 485 OI2026-10-16: 485 OI2026-10-21: 486 OI2026-10-23: 486 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, 2026Viewing4860
Oct 21, 2026486+1
Oct 16, 20264850
Oct 15, 2026485+1
Oct 14, 20264840
Oct 13, 20264840
Oct 09, 2026484No prior observation