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Contract OI history

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Jan 21, 2028 EXPIRATION

ATEC $15.00 Put

ATEC280121P00015000

Latest saved OI196Oct 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 $15.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 196980 2026-10-09: 196 OI2026-10-13: 196 OI2026-10-15: 196 OI2026-10-16: 196 OI2026-10-20: 196 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, 2026Viewing1960
Oct 16, 20261960
Oct 15, 20261960
Oct 13, 20261960
Oct 09, 2026196No prior observation