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Contract OI history

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Jan 15, 2027 EXPIRATION

TSM $185.00 Put

TSM270115P00185000

Latest saved OI451Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $185.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4512250 2026-10-02: 445 OI2026-10-05: 445 OI2026-10-06: 446 OI2026-10-07: 446 OI2026-10-08: 446 OI2026-10-09: 449 OI2026-10-14: 449 OI2026-10-15: 449 OI2026-10-16: 447 OI2026-10-21: 451 OI2026-10-23: 451 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4510
Oct 21, 2026451+4
Oct 16, 2026447-2
Oct 15, 20264490
Oct 14, 20264490
Oct 09, 2026449+3
Oct 08, 20264460
Oct 07, 20264460
Oct 06, 2026446+1
Oct 05, 20264450
Oct 02, 2026445No prior observation