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Contract OI history

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Jan 15, 2027 EXPIRATION

STM $85.00 Put

STM270115P00085000

Latest saved OI0Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $85.00 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. 2291140 2026-10-02: 229 OI2026-10-05: 229 OI2026-10-06: 229 OI2026-10-07: 229 OI2026-10-08: 229 OI2026-10-09: 229 OI2026-10-13: 229 OI2026-10-14: 229 OI2026-10-15: 7 OI2026-10-16: 3 OI2026-10-21: 3 OI2026-10-23: 0 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, 20260-3
Oct 21, 2026Viewing30
Oct 16, 20263-4
Oct 15, 20267-222
Oct 14, 20262290
Oct 13, 20262290
Oct 09, 20262290
Oct 08, 20262290
Oct 07, 20262290
Oct 06, 20262290
Oct 05, 20262290
Oct 02, 2026229No prior observation