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Contract OI history

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Jun 17, 2027 EXPIRATION

CMCSA $27.50 Put

CMCSA270617P00027500

Latest saved OI3,132Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $27.50 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. 3,1321,5660 2026-10-09: 2,640 OI2026-10-13: 2,640 OI2026-10-14: 2,640 OI2026-10-15: 3,132 OI2026-10-16: 3,132 OI2026-10-21: 3,132 OI2026-10-23: 3,132 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, 2026Viewing3,1320
Oct 21, 20263,1320
Oct 16, 20263,1320
Oct 15, 20263,132+492
Oct 14, 20262,6400
Oct 13, 20262,6400
Oct 09, 20262,640No prior observation