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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $385.00 Put

TSM261030P00385000

Latest saved OI577Oct 23, 2026
Last change+56vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $385.00 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. 5772880 2026-10-02: 261 OI2026-10-05: 221 OI2026-10-06: 209 OI2026-10-07: 207 OI2026-10-08: 207 OI2026-10-09: 229 OI2026-10-14: 220 OI2026-10-15: 280 OI2026-10-16: 361 OI2026-10-21: 521 OI2026-10-23: 577 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, 2026Viewing577+56
Oct 21, 2026521+160
Oct 16, 2026361+81
Oct 15, 2026280+60
Oct 14, 2026220-9
Oct 09, 2026229+22
Oct 08, 20262070
Oct 07, 2026207-2
Oct 06, 2026209-12
Oct 05, 2026221-40
Oct 02, 2026261No prior observation