OITracker Cboe delayed data

Contract OI history

Back to ALKS

Dec 18, 2026 EXPIRATION

ALKS $39.00 Put

ALKS261218P00039000

Latest saved OI117Oct 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 $39.00 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. 117580 2026-10-08: 107 OI2026-10-09: 107 OI2026-10-13: 107 OI2026-10-14: 107 OI2026-10-16: 117 OI2026-10-20: 117 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, 2026Viewing1170
Oct 16, 2026117+10
Oct 14, 20261070
Oct 13, 20261070
Oct 09, 20261070
Oct 08, 2026107No prior observation