OITracker Cboe delayed data

Contract OI history

Back to JANX

Dec 18, 2026 EXPIRATION

JANX $17.50 Put

JANX261218P00017500

Latest saved OI313Oct 23, 2026
Last change+54vs 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. 3131560 2026-10-09: 250 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-16: 259 OI2026-10-20: 259 OI2026-10-23: 313 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, 2026Viewing313+54
Oct 20, 20262590
Oct 16, 2026259+9
Oct 14, 20262500
Oct 13, 20262500
Oct 09, 2026250No prior observation