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Contract OI history

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Nov 20, 2026 EXPIRATION

ATI $230.00 Put

ATI261120P00230000

Latest saved OI28Oct 23, 2026
Last change-13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $230.00 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. 41200 2026-10-02: 41 OI2026-10-05: 41 OI2026-10-06: 41 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 41 OI2026-10-13: 41 OI2026-10-14: 41 OI2026-10-15: 41 OI2026-10-16: 41 OI2026-10-21: 41 OI2026-10-23: 28 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, 2026Viewing28-13
Oct 21, 2026410
Oct 16, 2026410
Oct 15, 2026410
Oct 14, 2026410
Oct 13, 2026410
Oct 09, 2026410
Oct 08, 2026410
Oct 07, 2026410
Oct 06, 2026410
Oct 05, 2026410
Oct 02, 202641No prior observation