OITracker Cboe delayed data

Contract OI history

Back to CMCSA

Nov 13, 2026 EXPIRATION

CMCSA $21.00 Put

CMCSA261113P00021000

Latest saved OI167Oct 23, 2026
Last change+21vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $21.00 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. 167830 2026-10-09: 72 OI2026-10-13: 100 OI2026-10-14: 100 OI2026-10-15: 127 OI2026-10-16: 123 OI2026-10-21: 146 OI2026-10-23: 167 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, 2026Viewing167+21
Oct 21, 2026146+23
Oct 16, 2026123-4
Oct 15, 2026127+27
Oct 14, 20261000
Oct 13, 2026100+28
Oct 09, 202672No prior observation