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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $350.00 Put

TSM261218P00350000

Latest saved OI8,526Oct 23, 2026
Last change+88vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $350.00 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. 8,6694,3340 2026-10-02: 8,669 OI2026-10-05: 8,662 OI2026-10-06: 8,281 OI2026-10-07: 8,418 OI2026-10-08: 8,418 OI2026-10-09: 8,412 OI2026-10-14: 8,288 OI2026-10-15: 8,287 OI2026-10-16: 8,231 OI2026-10-21: 8,438 OI2026-10-23: 8,526 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, 2026Viewing8,526+88
Oct 21, 20268,438+207
Oct 16, 20268,231-56
Oct 15, 20268,287-1
Oct 14, 20268,288-124
Oct 09, 20268,412-6
Oct 08, 20268,4180
Oct 07, 20268,418+137
Oct 06, 20268,281-381
Oct 05, 20268,662-7
Oct 02, 20268,669No prior observation