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Contract OI history

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Mar 19, 2027 EXPIRATION

CMCSA $25.00 Put

CMCSA270319P00025000

Latest saved OI3,871Oct 23, 2026
Last change+9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $25.00 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. 3,8711,9350 2026-10-09: 3,822 OI2026-10-13: 3,834 OI2026-10-14: 3,834 OI2026-10-15: 3,855 OI2026-10-16: 3,855 OI2026-10-21: 3,862 OI2026-10-23: 3,871 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, 2026Viewing3,871+9
Oct 21, 20263,862+7
Oct 16, 20263,8550
Oct 15, 20263,855+21
Oct 14, 20263,8340
Oct 13, 20263,834+12
Oct 09, 20263,822No prior observation