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Contract OI history

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Dec 18, 2026 EXPIRATION

ATRO $75.00 Call

ATRO1261218C00075000

Latest saved OI142Oct 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 $75.00 call open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 142710 2026-10-08: 137 OI2026-10-09: 137 OI2026-10-13: 142 OI2026-10-14: 142 OI2026-10-16: 142 OI2026-10-20: 142 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, 2026Viewing1420
Oct 16, 20261420
Oct 14, 20261420
Oct 13, 2026142+5
Oct 09, 20261370
Oct 08, 2026137No prior observation