OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

SM $32.50 Put

SM261218P00032500

Latest saved OI290Oct 23, 2026
Last change+4vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SM $32.50 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. 2901450 2026-10-02: 278 OI2026-10-05: 278 OI2026-10-07: 278 OI2026-10-08: 278 OI2026-10-09: 278 OI2026-10-13: 278 OI2026-10-15: 280 OI2026-10-16: 280 OI2026-10-21: 286 OI2026-10-23: 290 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, 2026290+4
Oct 21, 2026Viewing286+6
Oct 16, 20262800
Oct 15, 2026280+2
Oct 13, 20262780
Oct 09, 20262780
Oct 08, 20262780
Oct 07, 20262780
Oct 05, 20262780
Oct 02, 2026278No prior observation