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Contract OI history

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Nov 20, 2026 EXPIRATION

ATKR $45.00 Put

ATKR261120P00045000

Latest saved OI20Oct 23, 2026
Last change+16vs previous saved observation
Saved market days2Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
ATKR $45.00 put open interest history 2 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 20100 2026-10-16: 4 OI2026-10-23: 20 OI Oct 16, 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, 2026Viewing20+16
Oct 16, 20264No prior observation