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Contract OI history

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Dec 18, 2026 EXPIRATION

COR $300.00 Put

COR261218P00300000

Latest saved OI315Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COR $300.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3161580 2026-10-02: 256 OI2026-10-05: 315 OI2026-10-06: 315 OI2026-10-07: 315 OI2026-10-08: 315 OI2026-10-09: 315 OI2026-10-13: 315 OI2026-10-14: 315 OI2026-10-15: 315 OI2026-10-16: 316 OI2026-10-21: 312 OI2026-10-23: 315 OI Oct 02, 2026Oct 23, 2026

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

COR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing315+3
Oct 21, 2026312-4
Oct 16, 2026316+1
Oct 15, 20263150
Oct 14, 20263150
Oct 13, 20263150
Oct 09, 20263150
Oct 08, 20263150
Oct 07, 20263150
Oct 06, 20263150
Oct 05, 2026315+59
Oct 02, 2026256No prior observation