OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

DOW $12.50 Put

DOW280121P00012500

Latest saved OI320Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DOW $12.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3381690 2026-10-02: 323 OI2026-10-05: 338 OI2026-10-06: 338 OI2026-10-07: 326 OI2026-10-08: 326 OI2026-10-09: 326 OI2026-10-13: 322 OI2026-10-14: 322 OI2026-10-15: 322 OI2026-10-16: 322 OI2026-10-21: 321 OI2026-10-23: 320 OI Oct 02, 2026Oct 23, 2026

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

DOW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing320-1
Oct 21, 2026321-1
Oct 16, 20263220
Oct 15, 20263220
Oct 14, 20263220
Oct 13, 2026322-4
Oct 09, 20263260
Oct 08, 20263260
Oct 07, 2026326-12
Oct 06, 20263380
Oct 05, 2026338+15
Oct 02, 2026323No prior observation