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Contract OI history

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Dec 17, 2027 EXPIRATION

AMBQ $40.00 Put

AMBQ271217P00040000

Latest saved OI125Oct 20, 2026
Last change0vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AMBQ $40.00 put open interest history 9 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 125620 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 125 OI2026-10-14: 125 OI2026-10-16: 125 OI2026-10-20: 125 OI Oct 02, 2026Oct 20, 2026

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

AMBQ contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1250
Oct 16, 20261250
Oct 14, 20261250
Oct 13, 2026125+125
Oct 09, 202600
Oct 08, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation