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Contract OI history

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Feb 19, 2027 EXPIRATION

JANX $22.50 Put

JANX270219P00022500

Latest saved OI244Oct 23, 2026
Last change+3vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
JANX $22.50 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. 2441220 2026-10-09: 219 OI2026-10-13: 242 OI2026-10-14: 242 OI2026-10-16: 242 OI2026-10-20: 241 OI2026-10-23: 244 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, 2026Viewing244+3
Oct 20, 2026241-1
Oct 16, 20262420
Oct 14, 20262420
Oct 13, 2026242+23
Oct 09, 2026219No prior observation