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Contract OI history

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Oct 23, 2026 EXPIRATION

STM $50.00 Put

STM261023P00050000

Latest saved OI62Oct 23, 2026
Last change-35vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $50.00 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. 152760 2026-10-02: 80 OI2026-10-05: 75 OI2026-10-06: 79 OI2026-10-07: 93 OI2026-10-08: 93 OI2026-10-09: 96 OI2026-10-13: 152 OI2026-10-14: 152 OI2026-10-15: 152 OI2026-10-16: 152 OI2026-10-21: 97 OI2026-10-23: 62 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, 202662-35
Oct 21, 2026Viewing97-55
Oct 16, 20261520
Oct 15, 20261520
Oct 14, 20261520
Oct 13, 2026152+56
Oct 09, 202696+3
Oct 08, 2026930
Oct 07, 202693+14
Oct 06, 202679+4
Oct 05, 202675-5
Oct 02, 202680No prior observation