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Contract OI history

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Sep 17, 2027 EXPIRATION

TSM $440.00 Put

TSM270917P00440000

Latest saved OI2,983Oct 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 $440.00 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. 3,0031,5010 2026-10-02: 3,000 OI2026-10-05: 3,000 OI2026-10-06: 3,003 OI2026-10-07: 2,983 OI2026-10-08: 2,983 OI2026-10-09: 2,983 OI2026-10-14: 2,983 OI2026-10-15: 2,983 OI2026-10-16: 2,985 OI2026-10-21: 2,985 OI2026-10-23: 2,983 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, 2026Viewing2,983-2
Oct 21, 20262,9850
Oct 16, 20262,985+2
Oct 15, 20262,9830
Oct 14, 20262,9830
Oct 09, 20262,9830
Oct 08, 20262,9830
Oct 07, 20262,983-20
Oct 06, 20263,003+3
Oct 05, 20263,0000
Oct 02, 20263,000No prior observation