OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

SAR $22.50 Put

SAR270521P00022500

Latest saved OI377Oct 23, 2026
Last change+25vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SAR $22.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3771880 2026-10-02: 4 OI2026-10-05: 5 OI2026-10-07: 5 OI2026-10-08: 5 OI2026-10-09: 5 OI2026-10-13: 65 OI2026-10-14: 135 OI2026-10-16: 220 OI2026-10-20: 352 OI2026-10-23: 377 OI Oct 02, 2026Oct 23, 2026

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

SAR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing377+25
Oct 20, 2026352+132
Oct 16, 2026220+85
Oct 14, 2026135+70
Oct 13, 202665+60
Oct 09, 202650
Oct 08, 202650
Oct 07, 202650
Oct 05, 20265+1
Oct 02, 20264No prior observation