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Contract OI history

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Apr 16, 2027 EXPIRATION

AMBQ $55.00 Put

AMBQ270416P00055000

Latest saved OI121Oct 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 $55.00 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. 121600 2026-10-02: 120 OI2026-10-05: 120 OI2026-10-06: 121 OI2026-10-08: 121 OI2026-10-09: 121 OI2026-10-13: 121 OI2026-10-14: 121 OI2026-10-16: 121 OI2026-10-20: 121 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, 2026Viewing1210
Oct 16, 20261210
Oct 14, 20261210
Oct 13, 20261210
Oct 09, 20261210
Oct 08, 20261210
Oct 06, 2026121+1
Oct 05, 20261200
Oct 02, 2026120No prior observation