OITracker Cboe delayed data

Contract OI history

Back to CMCSA

Jan 21, 2028 EXPIRATION

CMCSA $35.00 Put

CMCSA280121P00035000

Latest saved OI123Oct 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 $35.00 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. 123610 2026-10-09: 97 OI2026-10-13: 117 OI2026-10-14: 117 OI2026-10-15: 117 OI2026-10-16: 117 OI2026-10-21: 123 OI2026-10-23: 123 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, 2026Viewing1230
Oct 21, 2026123+6
Oct 16, 20261170
Oct 15, 20261170
Oct 14, 20261170
Oct 13, 2026117+20
Oct 09, 202697No prior observation