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Contract OI history

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Jan 21, 2028 EXPIRATION

JANX $20.00 Put

JANX280121P00020000

Latest saved OI1,175Oct 23, 2026
Last change+120vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
JANX $20.00 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. 1,1755870 2026-10-09: 699 OI2026-10-13: 770 OI2026-10-14: 795 OI2026-10-16: 931 OI2026-10-20: 1,055 OI2026-10-23: 1,175 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, 2026Viewing1,175+120
Oct 20, 20261,055+124
Oct 16, 2026931+136
Oct 14, 2026795+25
Oct 13, 2026770+71
Oct 09, 2026699No prior observation