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Contract OI history

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Jan 15, 2027 EXPIRATION

AMBA $55.00 Put

AMBA270115P00055000

Latest saved OI895Oct 21, 2026
Last change+1vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMBA $55.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 8954470 2026-10-09: 129 OI2026-10-13: 127 OI2026-10-14: 127 OI2026-10-16: 894 OI2026-10-21: 895 OI Oct 09, 2026Oct 21, 2026

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

AMBA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing895+1
Oct 16, 2026894+767
Oct 14, 20261270
Oct 13, 2026127-2
Oct 09, 2026129No prior observation