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Contract OI history

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Jan 15, 2027 EXPIRATION

ATEC $20.00 Call

ATEC270115C00020000

Latest saved OI302Oct 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 $20.00 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. 3021510 2026-10-09: 302 OI2026-10-13: 302 OI2026-10-15: 302 OI2026-10-16: 302 OI2026-10-20: 302 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, 2026Viewing3020
Oct 16, 20263020
Oct 15, 20263020
Oct 13, 20263020
Oct 09, 2026302No prior observation