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Contract OI history

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Nov 20, 2026 EXPIRATION

ATKR $90.00 Put

ATKR261120P00090000

Latest saved OI5Oct 23, 2026
Last change-212vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATKR $90.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2171080 2026-10-02: 60 OI2026-10-05: 60 OI2026-10-06: 60 OI2026-10-07: 60 OI2026-10-08: 62 OI2026-10-09: 217 OI2026-10-13: 217 OI2026-10-14: 217 OI2026-10-16: 217 OI2026-10-23: 5 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ATKR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5-212
Oct 16, 20262170
Oct 14, 20262170
Oct 13, 20262170
Oct 09, 2026217+155
Oct 08, 202662+2
Oct 07, 2026600
Oct 06, 2026600
Oct 05, 2026600
Oct 02, 202660No prior observation