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Contract OI history

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Mar 19, 2027 EXPIRATION

ATRO $65.00 Put

ATRO270319P00065000

Latest saved OI93Oct 20, 2026
Last change-5vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ATRO $65.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 190950 2026-10-08: 190 OI2026-10-09: 190 OI2026-10-13: 190 OI2026-10-14: 190 OI2026-10-16: 98 OI2026-10-20: 93 OI Oct 08, 2026Oct 20, 2026

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

ATRO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing93-5
Oct 16, 202698-92
Oct 14, 20261900
Oct 13, 20261900
Oct 09, 20261900
Oct 08, 2026190No prior observation