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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $290.00 Put

TSM261023P00290000

Latest saved OI242Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $290.00 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. 2421210 2026-10-02: 135 OI2026-10-05: 135 OI2026-10-06: 135 OI2026-10-07: 135 OI2026-10-08: 135 OI2026-10-09: 136 OI2026-10-14: 136 OI2026-10-15: 138 OI2026-10-16: 238 OI2026-10-21: 240 OI2026-10-23: 242 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, 2026Viewing242+2
Oct 21, 2026240+2
Oct 16, 2026238+100
Oct 15, 2026138+2
Oct 14, 20261360
Oct 09, 2026136+1
Oct 08, 20261350
Oct 07, 20261350
Oct 06, 20261350
Oct 05, 20261350
Oct 02, 2026135No prior observation