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Contract OI history

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Jan 15, 2027 EXPIRATION

CMCSA $20.00 Put

CMCSA270115P00020000

Latest saved OI9,959Oct 23, 2026
Last change+92vs 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. 9,9594,9790 2026-10-09: 9,504 OI2026-10-13: 9,859 OI2026-10-14: 9,859 OI2026-10-15: 9,851 OI2026-10-16: 9,845 OI2026-10-21: 9,867 OI2026-10-23: 9,959 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, 2026Viewing9,959+92
Oct 21, 20269,867+22
Oct 16, 20269,845-6
Oct 15, 20269,851-8
Oct 14, 20269,8590
Oct 13, 20269,859+355
Oct 09, 20269,504No prior observation