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Contract OI history

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Jan 15, 2027 EXPIRATION

STM $43.00 Put

STM270115P00043000

Latest saved OI657Oct 23, 2026
Last change-10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $43.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6713350 2026-10-02: 671 OI2026-10-05: 671 OI2026-10-06: 671 OI2026-10-07: 671 OI2026-10-08: 671 OI2026-10-09: 671 OI2026-10-13: 671 OI2026-10-14: 671 OI2026-10-15: 667 OI2026-10-16: 667 OI2026-10-21: 667 OI2026-10-23: 657 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, 2026Viewing657-10
Oct 21, 20266670
Oct 16, 20266670
Oct 15, 2026667-4
Oct 14, 20266710
Oct 13, 20266710
Oct 09, 20266710
Oct 08, 20266710
Oct 07, 20266710
Oct 06, 20266710
Oct 05, 20266710
Oct 02, 2026671No prior observation