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Contract OI history

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Jan 15, 2027 EXPIRATION

AMSC $27.00 Call

AMSC270115C00027000

Latest saved OI666Oct 23, 2026
Last change+28vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMSC $27.00 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. 6663330 2026-10-08: 166 OI2026-10-09: 166 OI2026-10-13: 166 OI2026-10-14: 504 OI2026-10-16: 507 OI2026-10-21: 638 OI2026-10-23: 666 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, 2026Viewing666+28
Oct 21, 2026638+131
Oct 16, 2026507+3
Oct 14, 2026504+338
Oct 13, 20261660
Oct 09, 20261660
Oct 08, 2026166No prior observation