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Contract OI history

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Jan 21, 2028 EXPIRATION

JANX $17.50 Put

JANX280121P00017500

Latest saved OI846Oct 23, 2026
Last change+96vs 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. 8464230 2026-10-09: 549 OI2026-10-13: 549 OI2026-10-14: 570 OI2026-10-16: 687 OI2026-10-20: 750 OI2026-10-23: 846 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, 2026Viewing846+96
Oct 20, 2026750+63
Oct 16, 2026687+117
Oct 14, 2026570+21
Oct 13, 20265490
Oct 09, 2026549No prior observation