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Contract OI history

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Jan 15, 2027 EXPIRATION

AMSC $35.00 Put

AMSC270115P00035000

Latest saved OI271Oct 23, 2026
Last change-9vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMSC $35.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2801400 2026-10-08: 275 OI2026-10-09: 275 OI2026-10-13: 275 OI2026-10-14: 280 OI2026-10-16: 280 OI2026-10-21: 280 OI2026-10-23: 271 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, 2026Viewing271-9
Oct 21, 20262800
Oct 16, 20262800
Oct 14, 2026280+5
Oct 13, 20262750
Oct 09, 20262750
Oct 08, 2026275No prior observation