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Contract OI history

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Feb 19, 2027 EXPIRATION

JANX $21.00 Put

JANX270219P00021000

Latest saved OI4Oct 23, 2026
Last change+4vs previous saved observation
Saved market days5Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
JANX $21.00 put open interest history 5 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 420 2026-10-13: 0 OI2026-10-14: 0 OI2026-10-16: 0 OI2026-10-20: 0 OI2026-10-23: 4 OI Oct 13, 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, 2026Viewing4+4
Oct 20, 202600
Oct 16, 202600
Oct 14, 202600
Oct 13, 20260No prior observation