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Contract OI history

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Jun 17, 2027 EXPIRATION

CMCSA $20.00 Put

CMCSA270617P00020000

Latest saved OI14,504Oct 23, 2026
Last change+118vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $20.00 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. 14,5047,2520 2026-10-09: 14,422 OI2026-10-13: 14,441 OI2026-10-14: 14,441 OI2026-10-15: 14,386 OI2026-10-16: 14,386 OI2026-10-21: 14,386 OI2026-10-23: 14,504 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, 2026Viewing14,504+118
Oct 21, 202614,3860
Oct 16, 202614,3860
Oct 15, 202614,386-55
Oct 14, 202614,4410
Oct 13, 202614,441+19
Oct 09, 202614,422No prior observation