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Nov 20, 2026 EXPIRATION

STM $43.00 Put

STM261120P00043000

Latest saved OI352Oct 23, 2026
Last change+6vs 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. 3521760 2026-10-02: 143 OI2026-10-05: 239 OI2026-10-06: 239 OI2026-10-07: 239 OI2026-10-08: 239 OI2026-10-09: 237 OI2026-10-13: 236 OI2026-10-14: 236 OI2026-10-15: 236 OI2026-10-16: 336 OI2026-10-21: 346 OI2026-10-23: 352 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, 2026352+6
Oct 21, 2026Viewing346+10
Oct 16, 2026336+100
Oct 15, 20262360
Oct 14, 20262360
Oct 13, 2026236-1
Oct 09, 2026237-2
Oct 08, 20262390
Oct 07, 20262390
Oct 06, 20262390
Oct 05, 2026239+96
Oct 02, 2026143No prior observation