OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

SM $32.50 Put

SM270521P00032500

Latest saved OI116Oct 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 $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. 116580 2026-10-02: 112 OI2026-10-05: 112 OI2026-10-07: 116 OI2026-10-08: 116 OI2026-10-09: 116 OI2026-10-13: 116 OI2026-10-15: 116 OI2026-10-16: 116 OI2026-10-21: 116 OI2026-10-23: 116 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, 20261160
Oct 21, 2026Viewing1160
Oct 16, 20261160
Oct 15, 20261160
Oct 13, 20261160
Oct 09, 20261160
Oct 08, 20261160
Oct 07, 2026116+4
Oct 05, 20261120
Oct 02, 2026112No prior observation