OITracker Cboe delayed data

Contract OI history

Back to ALKS

Nov 20, 2026 EXPIRATION

ALKS $40.00 Put

ALKS261120P00040000

Latest saved OI63Oct 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 $40.00 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. 67330 2026-10-08: 63 OI2026-10-09: 67 OI2026-10-13: 67 OI2026-10-14: 67 OI2026-10-16: 63 OI2026-10-20: 63 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, 2026Viewing630
Oct 16, 202663-4
Oct 14, 2026670
Oct 13, 2026670
Oct 09, 202667+4
Oct 08, 202663No prior observation