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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $300.00 Put

TSM261218P00300000

Latest saved OI9,285Oct 23, 2026
Last change+441vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $300.00 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. 9,2854,6420 2026-10-02: 9,083 OI2026-10-05: 9,082 OI2026-10-06: 8,745 OI2026-10-07: 8,744 OI2026-10-08: 8,744 OI2026-10-09: 8,747 OI2026-10-14: 8,774 OI2026-10-15: 8,764 OI2026-10-16: 8,767 OI2026-10-21: 8,844 OI2026-10-23: 9,285 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, 2026Viewing9,285+441
Oct 21, 20268,844+77
Oct 16, 20268,767+3
Oct 15, 20268,764-10
Oct 14, 20268,774+27
Oct 09, 20268,747+3
Oct 08, 20268,7440
Oct 07, 20268,744-1
Oct 06, 20268,745-337
Oct 05, 20269,082-1
Oct 02, 20269,083No prior observation