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Contract OI history

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Jan 15, 2027 EXPIRATION

AMSC $31.00 Put

AMSC270115P00031000

Latest saved OI334Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMSC $31.00 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. 3341670 2026-10-08: 333 OI2026-10-09: 333 OI2026-10-13: 334 OI2026-10-14: 334 OI2026-10-16: 334 OI2026-10-21: 334 OI2026-10-23: 334 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, 2026Viewing3340
Oct 21, 20263340
Oct 16, 20263340
Oct 14, 20263340
Oct 13, 2026334+1
Oct 09, 20263330
Oct 08, 2026333No prior observation