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Contract OI history

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Apr 16, 2027 EXPIRATION

STM $55.00 Call

STM270416C00055000

Latest saved OI425Oct 23, 2026
Last change-11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $55.00 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. 4362180 2026-10-02: 354 OI2026-10-05: 378 OI2026-10-06: 363 OI2026-10-07: 364 OI2026-10-08: 364 OI2026-10-09: 363 OI2026-10-13: 401 OI2026-10-14: 401 OI2026-10-15: 427 OI2026-10-16: 423 OI2026-10-21: 436 OI2026-10-23: 425 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, 2026425-11
Oct 21, 2026Viewing436+13
Oct 16, 2026423-4
Oct 15, 2026427+26
Oct 14, 20264010
Oct 13, 2026401+38
Oct 09, 2026363-1
Oct 08, 20263640
Oct 07, 2026364+1
Oct 06, 2026363-15
Oct 05, 2026378+24
Oct 02, 2026354No prior observation