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Contract OI history

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Nov 20, 2026 EXPIRATION

COO $50.00 Put

COO261120P00050000

Latest saved OI820Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COO $50.00 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. 8354170 2026-10-09: 835 OI2026-10-13: 820 OI2026-10-14: 820 OI2026-10-15: 820 OI2026-10-16: 820 OI2026-10-21: 820 OI2026-10-23: 820 OI Oct 09, 2026Oct 23, 2026

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

COO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8200
Oct 21, 20268200
Oct 16, 20268200
Oct 15, 20268200
Oct 14, 20268200
Oct 13, 2026820-15
Oct 09, 2026835No prior observation