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Nov 20, 2026 EXPIRATION

ATI $185.00 Put

ATI261120P00185000

Latest saved OI132Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $185.00 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. 132660 2026-10-02: 88 OI2026-10-05: 94 OI2026-10-06: 94 OI2026-10-07: 94 OI2026-10-08: 115 OI2026-10-09: 115 OI2026-10-13: 118 OI2026-10-14: 118 OI2026-10-15: 121 OI2026-10-16: 124 OI2026-10-21: 129 OI2026-10-23: 132 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, 2026Viewing132+3
Oct 21, 2026129+5
Oct 16, 2026124+3
Oct 15, 2026121+3
Oct 14, 20261180
Oct 13, 2026118+3
Oct 09, 20261150
Oct 08, 2026115+21
Oct 07, 2026940
Oct 06, 2026940
Oct 05, 202694+6
Oct 02, 202688No prior observation