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Contract OI history

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Apr 16, 2027 EXPIRATION

TSM $390.00 Put

TSM270416P00390000

Latest saved OI1,204Oct 23, 2026
Last change-9vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $390.00 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. 1,2136060 2026-10-02: 382 OI2026-10-05: 388 OI2026-10-06: 478 OI2026-10-07: 479 OI2026-10-08: 479 OI2026-10-09: 482 OI2026-10-14: 754 OI2026-10-15: 788 OI2026-10-16: 805 OI2026-10-21: 1,213 OI2026-10-23: 1,204 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, 2026Viewing1,204-9
Oct 21, 20261,213+408
Oct 16, 2026805+17
Oct 15, 2026788+34
Oct 14, 2026754+272
Oct 09, 2026482+3
Oct 08, 20264790
Oct 07, 2026479+1
Oct 06, 2026478+90
Oct 05, 2026388+6
Oct 02, 2026382No prior observation