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Contract OI history

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Nov 13, 2026 EXPIRATION

TSM $395.00 Put

TSM261113P00395000

Latest saved OI228Oct 23, 2026
Last change-18vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $395.00 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. 2461230 2026-10-02: 0 OI2026-10-05: 4 OI2026-10-06: 4 OI2026-10-07: 8 OI2026-10-08: 8 OI2026-10-09: 42 OI2026-10-14: 48 OI2026-10-15: 68 OI2026-10-16: 112 OI2026-10-21: 246 OI2026-10-23: 228 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, 2026Viewing228-18
Oct 21, 2026246+134
Oct 16, 2026112+44
Oct 15, 202668+20
Oct 14, 202648+6
Oct 09, 202642+34
Oct 08, 202680
Oct 07, 20268+4
Oct 06, 202640
Oct 05, 20264+4
Oct 02, 20260No prior observation