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Contract OI history

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Dec 18, 2026 EXPIRATION

CORZ $21.00 Put

CORZ261218P00021000

Latest saved OI6,745Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CORZ $21.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6,7573,3780 2026-10-09: 6,755 OI2026-10-13: 6,757 OI2026-10-14: 6,757 OI2026-10-15: 6,757 OI2026-10-16: 6,753 OI2026-10-21: 6,745 OI2026-10-23: 6,745 OI Oct 09, 2026Oct 23, 2026

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

CORZ contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6,7450
Oct 21, 20266,745-8
Oct 16, 20266,753-4
Oct 15, 20266,7570
Oct 14, 20266,7570
Oct 13, 20266,757+2
Oct 09, 20266,755No prior observation