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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $490.00 Put

TSM261120P00490000

Latest saved OI338Oct 23, 2026
Last change-148vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $490.00 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. 6703350 2026-10-02: 388 OI2026-10-05: 457 OI2026-10-06: 666 OI2026-10-07: 670 OI2026-10-08: 670 OI2026-10-09: 549 OI2026-10-14: 515 OI2026-10-15: 474 OI2026-10-16: 486 OI2026-10-21: 486 OI2026-10-23: 338 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, 2026Viewing338-148
Oct 21, 20264860
Oct 16, 2026486+12
Oct 15, 2026474-41
Oct 14, 2026515-34
Oct 09, 2026549-121
Oct 08, 20266700
Oct 07, 2026670+4
Oct 06, 2026666+209
Oct 05, 2026457+69
Oct 02, 2026388No prior observation