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Contract OI history

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Jan 15, 2027 EXPIRATION

STM $41.00 Put

STM270115P00041000

Latest saved OI1,655Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $41.00 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. 1,6658320 2026-10-02: 1,662 OI2026-10-05: 1,662 OI2026-10-06: 1,662 OI2026-10-07: 1,665 OI2026-10-08: 1,665 OI2026-10-09: 1,665 OI2026-10-13: 1,656 OI2026-10-14: 1,656 OI2026-10-15: 1,657 OI2026-10-16: 1,652 OI2026-10-21: 1,655 OI2026-10-23: 1,655 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, 2026Viewing1,6550
Oct 21, 20261,655+3
Oct 16, 20261,652-5
Oct 15, 20261,657+1
Oct 14, 20261,6560
Oct 13, 20261,656-9
Oct 09, 20261,6650
Oct 08, 20261,6650
Oct 07, 20261,665+3
Oct 06, 20261,6620
Oct 05, 20261,6620
Oct 02, 20261,662No prior observation