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Contract OI history

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Nov 20, 2026 EXPIRATION

ATI $190.00 Put

ATI261120P00190000

Latest saved OI670Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $190.00 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. 6703350 2026-10-02: 389 OI2026-10-05: 620 OI2026-10-06: 620 OI2026-10-07: 620 OI2026-10-08: 623 OI2026-10-09: 628 OI2026-10-13: 640 OI2026-10-14: 638 OI2026-10-15: 640 OI2026-10-16: 644 OI2026-10-21: 665 OI2026-10-23: 670 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, 2026Viewing670+5
Oct 21, 2026665+21
Oct 16, 2026644+4
Oct 15, 2026640+2
Oct 14, 2026638-2
Oct 13, 2026640+12
Oct 09, 2026628+5
Oct 08, 2026623+3
Oct 07, 20266200
Oct 06, 20266200
Oct 05, 2026620+231
Oct 02, 2026389No prior observation