OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

SM $25.00 Put

SM261120P00025000

Latest saved OI144Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SM $25.00 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. 144720 2026-10-02: 138 OI2026-10-05: 138 OI2026-10-07: 138 OI2026-10-08: 144 OI2026-10-09: 144 OI2026-10-13: 144 OI2026-10-15: 144 OI2026-10-16: 144 OI2026-10-21: 144 OI2026-10-23: 144 OI Oct 02, 2026Oct 23, 2026

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

SM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261440
Oct 21, 2026Viewing1440
Oct 16, 20261440
Oct 15, 20261440
Oct 13, 20261440
Oct 09, 20261440
Oct 08, 2026144+6
Oct 07, 20261380
Oct 05, 20261380
Oct 02, 2026138No prior observation