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Contract OI history

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Feb 19, 2027 EXPIRATION

TSM $400.00 Put

TSM270219P00400000

Latest saved OI11,653Oct 23, 2026
Last change+27vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $400.00 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. 11,6535,8260 2026-10-02: 10,747 OI2026-10-05: 10,809 OI2026-10-06: 10,888 OI2026-10-07: 10,900 OI2026-10-08: 10,900 OI2026-10-09: 10,966 OI2026-10-14: 11,022 OI2026-10-15: 11,038 OI2026-10-16: 11,195 OI2026-10-21: 11,626 OI2026-10-23: 11,653 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, 2026Viewing11,653+27
Oct 21, 202611,626+431
Oct 16, 202611,195+157
Oct 15, 202611,038+16
Oct 14, 202611,022+56
Oct 09, 202610,966+66
Oct 08, 202610,9000
Oct 07, 202610,900+12
Oct 06, 202610,888+79
Oct 05, 202610,809+62
Oct 02, 202610,747No prior observation