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Nov 20, 2026 EXPIRATION

ATI $170.00 Put

ATI261120P00170000

Latest saved OI148Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATI $170.00 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. 148740 2026-10-02: 14 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 23 OI2026-10-08: 22 OI2026-10-09: 22 OI2026-10-13: 23 OI2026-10-14: 147 OI2026-10-15: 146 OI2026-10-16: 146 OI2026-10-21: 148 OI2026-10-23: 148 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, 2026Viewing1480
Oct 21, 2026148+2
Oct 16, 20261460
Oct 15, 2026146-1
Oct 14, 2026147+124
Oct 13, 202623+1
Oct 09, 2026220
Oct 08, 202622-1
Oct 07, 202623+5
Oct 06, 2026180
Oct 05, 202618+4
Oct 02, 202614No prior observation