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Contract OI history

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Jan 15, 2027 EXPIRATION

ATI $185.00 Put

ATI270115P00185000

Latest saved OI100Oct 23, 2026
Last change+2vs 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. 100500 2026-10-02: 91 OI2026-10-05: 91 OI2026-10-06: 91 OI2026-10-07: 91 OI2026-10-08: 91 OI2026-10-09: 91 OI2026-10-13: 91 OI2026-10-14: 92 OI2026-10-15: 92 OI2026-10-16: 94 OI2026-10-21: 98 OI2026-10-23: 100 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, 2026Viewing100+2
Oct 21, 202698+4
Oct 16, 202694+2
Oct 15, 2026920
Oct 14, 202692+1
Oct 13, 2026910
Oct 09, 2026910
Oct 08, 2026910
Oct 07, 2026910
Oct 06, 2026910
Oct 05, 2026910
Oct 02, 202691No prior observation