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Contract OI history

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Dec 18, 2026 EXPIRATION

CORZ $20.00 Put

CORZ261218P00020000

Latest saved OI329Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CORZ $20.00 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. 3341670 2026-10-09: 332 OI2026-10-13: 333 OI2026-10-14: 333 OI2026-10-15: 333 OI2026-10-16: 333 OI2026-10-21: 334 OI2026-10-23: 329 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, 2026Viewing329-5
Oct 21, 2026334+1
Oct 16, 20263330
Oct 15, 20263330
Oct 14, 20263330
Oct 13, 2026333+1
Oct 09, 2026332No prior observation