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Contract OI history

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Dec 18, 2026 EXPIRATION

JACK $17.50 Put

JACK261218P00017500

Latest saved OI716Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
JACK $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. 7163580 2026-10-09: 716 OI2026-10-13: 716 OI2026-10-14: 716 OI2026-10-16: 716 OI2026-10-20: 716 OI2026-10-23: 716 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

JACK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7160
Oct 20, 20267160
Oct 16, 20267160
Oct 14, 20267160
Oct 13, 20267160
Oct 09, 2026716No prior observation