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Contract OI history

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Apr 16, 2027 EXPIRATION

TSM $420.00 Put

TSM270416P00420000

Latest saved OI6,800Oct 23, 2026
Last change+46vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $420.00 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. 6,8003,4000 2026-10-02: 6,533 OI2026-10-05: 6,479 OI2026-10-06: 6,488 OI2026-10-07: 6,496 OI2026-10-08: 6,496 OI2026-10-09: 6,500 OI2026-10-14: 6,498 OI2026-10-15: 6,656 OI2026-10-16: 6,725 OI2026-10-21: 6,754 OI2026-10-23: 6,800 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, 2026Viewing6,800+46
Oct 21, 20266,754+29
Oct 16, 20266,725+69
Oct 15, 20266,656+158
Oct 14, 20266,498-2
Oct 09, 20266,500+4
Oct 08, 20266,4960
Oct 07, 20266,496+8
Oct 06, 20266,488+9
Oct 05, 20266,479-54
Oct 02, 20266,533No prior observation