OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

STM $25.00 Put

STM270115P00025000

Latest saved OI1,853Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $25.00 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. 1,8539260 2026-10-02: 1,853 OI2026-10-05: 1,853 OI2026-10-06: 1,853 OI2026-10-07: 1,853 OI2026-10-08: 1,853 OI2026-10-09: 1,853 OI2026-10-13: 1,853 OI2026-10-14: 1,853 OI2026-10-15: 1,853 OI2026-10-16: 1,853 OI2026-10-21: 1,853 OI2026-10-23: 1,853 OI Oct 02, 2026Oct 23, 2026

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

STM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,8530
Oct 21, 20261,8530
Oct 16, 20261,8530
Oct 15, 20261,8530
Oct 14, 20261,8530
Oct 13, 20261,8530
Oct 09, 20261,8530
Oct 08, 20261,8530
Oct 07, 20261,8530
Oct 06, 20261,8530
Oct 05, 20261,8530
Oct 02, 20261,853No prior observation