OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ALKS $43.00 Put

ALKS261120P00043000

Latest saved OI248Oct 20, 2026
Last change+183vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ALKS $43.00 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. 2481240 2026-10-08: 65 OI2026-10-09: 65 OI2026-10-13: 65 OI2026-10-14: 65 OI2026-10-16: 65 OI2026-10-20: 248 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, 2026Viewing248+183
Oct 16, 2026650
Oct 14, 2026650
Oct 13, 2026650
Oct 09, 2026650
Oct 08, 202665No prior observation