OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

SM $35.00 Put

SM261120P00035000

Latest saved OI489Oct 23, 2026
Last change+61vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SM $35.00 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. 4892440 2026-10-02: 315 OI2026-10-05: 315 OI2026-10-07: 311 OI2026-10-08: 314 OI2026-10-09: 330 OI2026-10-13: 339 OI2026-10-15: 354 OI2026-10-16: 358 OI2026-10-21: 428 OI2026-10-23: 489 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, 2026489+61
Oct 21, 2026Viewing428+70
Oct 16, 2026358+4
Oct 15, 2026354+15
Oct 13, 2026339+9
Oct 09, 2026330+16
Oct 08, 2026314+3
Oct 07, 2026311-4
Oct 05, 20263150
Oct 02, 2026315No prior observation