OITracker Cboe delayed data

Contract OI history

Back to ALKS

Dec 18, 2026 EXPIRATION

ALKS $41.00 Put

ALKS261218P00041000

Latest saved OI55Oct 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 $41.00 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. 55270 2026-10-08: 55 OI2026-10-09: 55 OI2026-10-13: 55 OI2026-10-14: 55 OI2026-10-16: 55 OI2026-10-20: 55 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, 2026Viewing550
Oct 16, 2026550
Oct 14, 2026550
Oct 13, 2026550
Oct 09, 2026550
Oct 08, 202655No prior observation