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Jan 15, 2027 EXPIRATION

ATI $145.00 Put

ATI270115P00145000

Latest saved OI260Oct 23, 2026
Last change+68vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $145.00 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. 2601300 2026-10-02: 194 OI2026-10-05: 193 OI2026-10-06: 193 OI2026-10-07: 192 OI2026-10-08: 192 OI2026-10-09: 192 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-15: 192 OI2026-10-16: 192 OI2026-10-21: 192 OI2026-10-23: 260 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, 2026Viewing260+68
Oct 21, 20261920
Oct 16, 20261920
Oct 15, 20261920
Oct 14, 20261920
Oct 13, 20261920
Oct 09, 20261920
Oct 08, 20261920
Oct 07, 2026192-1
Oct 06, 20261930
Oct 05, 2026193-1
Oct 02, 2026194No prior observation