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Contract OI history

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Jan 15, 2027 EXPIRATION

AMSC $22.00 Put

AMSC270115P00022000

Latest saved OI342Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMSC $22.00 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. 3421710 2026-10-08: 333 OI2026-10-09: 333 OI2026-10-13: 333 OI2026-10-14: 321 OI2026-10-16: 340 OI2026-10-21: 339 OI2026-10-23: 342 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, 2026Viewing342+3
Oct 21, 2026339-1
Oct 16, 2026340+19
Oct 14, 2026321-12
Oct 13, 20263330
Oct 09, 20263330
Oct 08, 2026333No prior observation