OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

S $25.00 Put

S261120P00025000

Latest saved OI308Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $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. 3081540 2026-10-02: 43 OI2026-10-05: 44 OI2026-10-06: 111 OI2026-10-07: 120 OI2026-10-08: 120 OI2026-10-09: 258 OI2026-10-13: 297 OI2026-10-14: 297 OI2026-10-15: 297 OI2026-10-16: 298 OI2026-10-21: 308 OI2026-10-23: 308 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, 2026Viewing3080
Oct 21, 2026308+10
Oct 16, 2026298+1
Oct 15, 20262970
Oct 14, 20262970
Oct 13, 2026297+39
Oct 09, 2026258+138
Oct 08, 20261200
Oct 07, 2026120+9
Oct 06, 2026111+67
Oct 05, 202644+1
Oct 02, 202643No prior observation