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Contract OI history

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Feb 19, 2027 EXPIRATION

TSM $390.00 Put

TSM270219P00390000

Latest saved OI1,799Oct 23, 2026
Last change+60vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $390.00 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. 1,7998990 2026-10-02: 648 OI2026-10-05: 645 OI2026-10-06: 850 OI2026-10-07: 855 OI2026-10-08: 855 OI2026-10-09: 861 OI2026-10-14: 1,681 OI2026-10-15: 1,687 OI2026-10-16: 1,699 OI2026-10-21: 1,739 OI2026-10-23: 1,799 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, 2026Viewing1,799+60
Oct 21, 20261,739+40
Oct 16, 20261,699+12
Oct 15, 20261,687+6
Oct 14, 20261,681+820
Oct 09, 2026861+6
Oct 08, 20268550
Oct 07, 2026855+5
Oct 06, 2026850+205
Oct 05, 2026645-3
Oct 02, 2026648No prior observation