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Contract OI history

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Dec 18, 2026 EXPIRATION

CMCSA $26.00 Put

CMCSA261218P00026000

Latest saved OI476Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $26.00 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. 5002500 2026-10-09: 500 OI2026-10-13: 479 OI2026-10-14: 479 OI2026-10-15: 479 OI2026-10-16: 479 OI2026-10-21: 477 OI2026-10-23: 476 OI Oct 09, 2026Oct 23, 2026

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

CMCSA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing476-1
Oct 21, 2026477-2
Oct 16, 20264790
Oct 15, 20264790
Oct 14, 20264790
Oct 13, 2026479-21
Oct 09, 2026500No prior observation