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Contract OI history

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Dec 15, 2028 EXPIRATION

TSM $380.00 Put

TSM281215P00380000

Latest saved OI492Oct 23, 2026
Last change-30vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $380.00 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. 5222610 2026-10-02: 484 OI2026-10-05: 479 OI2026-10-06: 481 OI2026-10-07: 482 OI2026-10-08: 482 OI2026-10-09: 483 OI2026-10-14: 484 OI2026-10-15: 419 OI2026-10-16: 422 OI2026-10-21: 522 OI2026-10-23: 492 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, 2026Viewing492-30
Oct 21, 2026522+100
Oct 16, 2026422+3
Oct 15, 2026419-65
Oct 14, 2026484+1
Oct 09, 2026483+1
Oct 08, 20264820
Oct 07, 2026482+1
Oct 06, 2026481+2
Oct 05, 2026479-5
Oct 02, 2026484No prior observation