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Contract OI history

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Jan 15, 2027 EXPIRATION

AMSC $20.00 Call

AMSC270115C00020000

Latest saved OI220Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMSC $20.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2211100 2026-10-08: 213 OI2026-10-09: 213 OI2026-10-13: 213 OI2026-10-14: 221 OI2026-10-16: 221 OI2026-10-21: 221 OI2026-10-23: 220 OI Oct 08, 2026Oct 23, 2026

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

AMSC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing220-1
Oct 21, 20262210
Oct 16, 20262210
Oct 14, 2026221+8
Oct 13, 20262130
Oct 09, 20262130
Oct 08, 2026213No prior observation