OITracker Cboe delayed data

Contract OI history

Back to JANX

May 21, 2027 EXPIRATION

JANX $17.50 Put

JANX270521P00017500

Latest saved OI123Oct 23, 2026
Last change+60vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
JANX $17.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 123610 2026-10-09: 63 OI2026-10-13: 63 OI2026-10-14: 64 OI2026-10-16: 63 OI2026-10-20: 63 OI2026-10-23: 123 OI Oct 09, 2026Oct 23, 2026

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

JANX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing123+60
Oct 20, 2026630
Oct 16, 202663-1
Oct 14, 202664+1
Oct 13, 2026630
Oct 09, 202663No prior observation