OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

S $22.50 Put

S261030P00022500

Latest saved OI53Oct 23, 2026
Last change+33vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $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. 53260 2026-10-02: 5 OI2026-10-05: 5 OI2026-10-06: 7 OI2026-10-07: 7 OI2026-10-08: 7 OI2026-10-09: 11 OI2026-10-13: 12 OI2026-10-14: 12 OI2026-10-15: 22 OI2026-10-16: 22 OI2026-10-21: 20 OI2026-10-23: 53 OI Oct 02, 2026Oct 23, 2026

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

S contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing53+33
Oct 21, 202620-2
Oct 16, 2026220
Oct 15, 202622+10
Oct 14, 2026120
Oct 13, 202612+1
Oct 09, 202611+4
Oct 08, 202670
Oct 07, 202670
Oct 06, 20267+2
Oct 05, 202650
Oct 02, 20265No prior observation