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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $370.00 Put

TSM261023P00370000

Latest saved OI478Oct 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 $370.00 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. 4782390 2026-10-02: 110 OI2026-10-05: 105 OI2026-10-06: 104 OI2026-10-07: 110 OI2026-10-08: 110 OI2026-10-09: 117 OI2026-10-14: 117 OI2026-10-15: 106 OI2026-10-16: 390 OI2026-10-21: 469 OI2026-10-23: 478 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, 2026Viewing478+9
Oct 21, 2026469+79
Oct 16, 2026390+284
Oct 15, 2026106-11
Oct 14, 20261170
Oct 09, 2026117+7
Oct 08, 20261100
Oct 07, 2026110+6
Oct 06, 2026104-1
Oct 05, 2026105-5
Oct 02, 2026110No prior observation