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Contract OI history

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Dec 18, 2026 EXPIRATION

ATEC $25.00 Call

ATEC261218C00025000

Latest saved OI101Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ATEC $25.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 101500 2026-10-09: 101 OI2026-10-13: 101 OI2026-10-15: 101 OI2026-10-16: 101 OI2026-10-20: 101 OI Oct 09, 2026Oct 20, 2026

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

ATEC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1010
Oct 16, 20261010
Oct 15, 20261010
Oct 13, 20261010
Oct 09, 2026101No prior observation