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Contract OI history

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Jan 15, 2027 EXPIRATION

ATI $220.00 Call

ATI270115C00220000

Latest saved OI357Oct 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 $220.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3631810 2026-10-02: 56 OI2026-10-05: 363 OI2026-10-06: 363 OI2026-10-07: 363 OI2026-10-08: 363 OI2026-10-09: 363 OI2026-10-13: 363 OI2026-10-14: 363 OI2026-10-15: 363 OI2026-10-16: 358 OI2026-10-21: 358 OI2026-10-23: 357 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, 2026Viewing357-1
Oct 21, 20263580
Oct 16, 2026358-5
Oct 15, 20263630
Oct 14, 20263630
Oct 13, 20263630
Oct 09, 20263630
Oct 08, 20263630
Oct 07, 20263630
Oct 06, 20263630
Oct 05, 2026363+307
Oct 02, 202656No prior observation