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Contract OI history

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Dec 18, 2026 EXPIRATION

AMPH $20.00 Call

AMPH261218C00020000

Latest saved OI104Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPH $20.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 105520 2026-10-09: 105 OI2026-10-13: 105 OI2026-10-14: 105 OI2026-10-16: 104 OI2026-10-20: 104 OI2026-10-23: 104 OI Oct 09, 2026Oct 23, 2026

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

AMPH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1040
Oct 20, 20261040
Oct 16, 2026104-1
Oct 14, 20261050
Oct 13, 20261050
Oct 09, 2026105No prior observation