OITracker Cboe delayed data

Contract OI history

Back to ALKS

May 21, 2027 EXPIRATION

ALKS $37.00 Put

ALKS270521P00037000

Latest saved OI1Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ALKS $37.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 10 2026-10-08: 1 OI2026-10-09: 1 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-16: 1 OI2026-10-20: 1 OI Oct 08, 2026Oct 20, 2026

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

ALKS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing10
Oct 16, 202610
Oct 14, 202610
Oct 13, 202610
Oct 09, 202610
Oct 08, 20261No prior observation