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Nov 20, 2026 EXPIRATION

ATI $175.00 Put

ATI261120P00175000

Latest saved OI164Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $175.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 165820 2026-10-02: 29 OI2026-10-05: 34 OI2026-10-06: 34 OI2026-10-07: 47 OI2026-10-08: 98 OI2026-10-09: 96 OI2026-10-13: 98 OI2026-10-14: 98 OI2026-10-15: 154 OI2026-10-16: 152 OI2026-10-21: 165 OI2026-10-23: 164 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ATI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing164-1
Oct 21, 2026165+13
Oct 16, 2026152-2
Oct 15, 2026154+56
Oct 14, 2026980
Oct 13, 202698+2
Oct 09, 202696-2
Oct 08, 202698+51
Oct 07, 202647+13
Oct 06, 2026340
Oct 05, 202634+5
Oct 02, 202629No prior observation