OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

SM $30.00 Put

SM270521P00030000

Latest saved OI31Oct 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 $30.00 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. 31150 2026-10-02: 28 OI2026-10-05: 28 OI2026-10-07: 25 OI2026-10-08: 25 OI2026-10-09: 25 OI2026-10-13: 20 OI2026-10-15: 30 OI2026-10-16: 31 OI2026-10-21: 31 OI2026-10-23: 31 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, 2026310
Oct 21, 2026Viewing310
Oct 16, 202631+1
Oct 15, 202630+10
Oct 13, 202620-5
Oct 09, 2026250
Oct 08, 2026250
Oct 07, 202625-3
Oct 05, 2026280
Oct 02, 202628No prior observation