OITracker Cboe delayed data

Contract OI history

Back to SM

Dec 18, 2026 EXPIRATION

SM $25.00 Put

SM261218P00025000

Latest saved OI403Oct 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. 4032010 2026-10-02: 385 OI2026-10-05: 385 OI2026-10-07: 385 OI2026-10-08: 386 OI2026-10-09: 386 OI2026-10-13: 386 OI2026-10-15: 386 OI2026-10-16: 386 OI2026-10-21: 403 OI2026-10-23: 403 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, 20264030
Oct 21, 2026Viewing403+17
Oct 16, 20263860
Oct 15, 20263860
Oct 13, 20263860
Oct 09, 20263860
Oct 08, 2026386+1
Oct 07, 20263850
Oct 05, 20263850
Oct 02, 2026385No prior observation