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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $430.00 Put

TSM261218P00430000

Latest saved OI3,178Oct 23, 2026
Last change+467vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $430.00 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. 3,1781,5890 2026-10-02: 2,279 OI2026-10-05: 2,287 OI2026-10-06: 2,343 OI2026-10-07: 2,351 OI2026-10-08: 2,351 OI2026-10-09: 2,487 OI2026-10-14: 2,572 OI2026-10-15: 2,597 OI2026-10-16: 2,604 OI2026-10-21: 2,711 OI2026-10-23: 3,178 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, 2026Viewing3,178+467
Oct 21, 20262,711+107
Oct 16, 20262,604+7
Oct 15, 20262,597+25
Oct 14, 20262,572+85
Oct 09, 20262,487+136
Oct 08, 20262,3510
Oct 07, 20262,351+8
Oct 06, 20262,343+56
Oct 05, 20262,287+8
Oct 02, 20262,279No prior observation