OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

S $25.00 Put

S261218P00025000

Latest saved OI216Oct 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. 2161080 2026-10-02: 151 OI2026-10-05: 197 OI2026-10-06: 200 OI2026-10-07: 200 OI2026-10-08: 200 OI2026-10-09: 205 OI2026-10-13: 214 OI2026-10-14: 214 OI2026-10-15: 215 OI2026-10-16: 215 OI2026-10-21: 216 OI2026-10-23: 216 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, 2026Viewing2160
Oct 21, 2026216+1
Oct 16, 20262150
Oct 15, 2026215+1
Oct 14, 20262140
Oct 13, 2026214+9
Oct 09, 2026205+5
Oct 08, 20262000
Oct 07, 20262000
Oct 06, 2026200+3
Oct 05, 2026197+46
Oct 02, 2026151No prior observation