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Contract OI history

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Dec 18, 2026 EXPIRATION

JACK $12.50 Put

JACK261218P00012500

Latest saved OI161Oct 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 $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. 163810 2026-10-09: 143 OI2026-10-13: 143 OI2026-10-14: 163 OI2026-10-16: 153 OI2026-10-20: 161 OI2026-10-23: 161 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, 2026Viewing1610
Oct 20, 2026161+8
Oct 16, 2026153-10
Oct 14, 2026163+20
Oct 13, 20261430
Oct 09, 2026143No prior observation