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Contract OI history

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Nov 20, 2026 EXPIRATION

AMBA $27.50 Put

AMBA261120P00027500

Latest saved OI186Oct 21, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMBA $27.50 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. 186930 2026-10-09: 186 OI2026-10-13: 186 OI2026-10-14: 186 OI2026-10-16: 186 OI2026-10-21: 186 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, 2026Viewing1860
Oct 16, 20261860
Oct 14, 20261860
Oct 13, 20261860
Oct 09, 2026186No prior observation