OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ST $22.50 Put

ST270115P00022500

Latest saved OI771Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ST $22.50 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. 7713850 2026-10-02: 751 OI2026-10-05: 751 OI2026-10-06: 751 OI2026-10-07: 751 OI2026-10-08: 751 OI2026-10-09: 751 OI2026-10-13: 751 OI2026-10-14: 751 OI2026-10-15: 771 OI2026-10-16: 771 OI2026-10-21: 771 OI2026-10-23: 771 OI Oct 02, 2026Oct 23, 2026

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

ST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20267710
Oct 21, 2026Viewing7710
Oct 16, 20267710
Oct 15, 2026771+20
Oct 14, 20267510
Oct 13, 20267510
Oct 09, 20267510
Oct 08, 20267510
Oct 07, 20267510
Oct 06, 20267510
Oct 05, 20267510
Oct 02, 2026751No prior observation