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Contract OI history

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Jan 15, 2027 EXPIRATION

STM $40.00 Call

STM270115C00040000

Latest saved OI763Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8104050 2026-10-02: 810 OI2026-10-05: 779 OI2026-10-06: 778 OI2026-10-07: 778 OI2026-10-08: 778 OI2026-10-09: 767 OI2026-10-13: 767 OI2026-10-14: 767 OI2026-10-15: 767 OI2026-10-16: 767 OI2026-10-21: 768 OI2026-10-23: 763 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

STM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing763-5
Oct 21, 2026768+1
Oct 16, 20267670
Oct 15, 20267670
Oct 14, 20267670
Oct 13, 20267670
Oct 09, 2026767-11
Oct 08, 20267780
Oct 07, 20267780
Oct 06, 2026778-1
Oct 05, 2026779-31
Oct 02, 2026810No prior observation