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Contract OI history

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Nov 20, 2026 EXPIRATION

CMCSA $18.00 Put

CMCSA261120P00018000

Latest saved OI4,465Oct 23, 2026
Last change-2,414vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $18.00 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. 6,8833,4410 2026-10-09: 6,866 OI2026-10-13: 6,873 OI2026-10-14: 6,873 OI2026-10-15: 6,883 OI2026-10-16: 6,879 OI2026-10-21: 6,879 OI2026-10-23: 4,465 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, 2026Viewing4,465-2,414
Oct 21, 20266,8790
Oct 16, 20266,879-4
Oct 15, 20266,883+10
Oct 14, 20266,8730
Oct 13, 20266,873+7
Oct 09, 20266,866No prior observation