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Contract OI history

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Jan 15, 2027 EXPIRATION

JANX $12.50 Put

JANX270115P00012500

Latest saved OI22Oct 23, 2026
Last change+10vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
JANX $12.50 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. 22110 2026-10-09: 12 OI2026-10-13: 12 OI2026-10-14: 8 OI2026-10-16: 9 OI2026-10-20: 12 OI2026-10-23: 22 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, 2026Viewing22+10
Oct 20, 202612+3
Oct 16, 20269+1
Oct 14, 20268-4
Oct 13, 2026120
Oct 09, 202612No prior observation