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Contract OI history

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Mar 19, 2027 EXPIRATION

ATRO $70.00 Put

ATRO270319P00070000

Latest saved OI45Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ATRO $70.00 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. 45220 2026-10-08: 45 OI2026-10-09: 45 OI2026-10-13: 45 OI2026-10-14: 45 OI2026-10-16: 45 OI2026-10-20: 45 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, 2026Viewing450
Oct 16, 2026450
Oct 14, 2026450
Oct 13, 2026450
Oct 09, 2026450
Oct 08, 202645No prior observation