After-hours trading runs 4:00 PM – 8:00 PM ET.
CMCSA last traded at $25.18 after hours, down $0.02 (0.10%) from its regular-session close of $25.20.
📅 CMCSA is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $1.01. CMCSA earnings details →
Over the past 5 years, CMCSA has had 10 qualifying gap events (gaps of 5% or more at the open) — 2 gap-ups and 8 gap-downs. Gap-ups averaged +11.9%, 100% have fully filled, median time to fill 9.5 trading days. Gap-downs averaged -7%, 88% have fully filled, median time to fill 14 trading days. Most recent: a +16.7% gap up on Jun 29, 2026, which filled in 4 trading days. Average 20-trading-day return after a CMCSA gap up: -7.51%. After a gap down: +4.81%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 100% | 100% | 100% | 100% |
| fills 75% | 50% | 100% | 100% | 100% |
| fills 100% | 0% | 50% | 50% | 100% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 63% | 75% | 88% | 100% |
| fills 50% | 63% | 75% | 75% | 88% |
| fills 75% | 25% | 63% | 63% | 88% |
| fills 100% | 13% | 13% | 38% | 63% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-06-29 | $23.17 | +16.72% | Filled | 1d | 4d | 74% | 100% | 100% | 100% |
| 2026-01-05 | $29.54 | -6.13% | Filled | 1d | 18d | 66% | 88% | 88% | 100% |
| 2025-10-30 | $28.53 | -8.55% | Filled | 1d | 33d | 82% | 82% | 90% | 90% |
| 2025-04-24 | $34.47 | -7.22% | Filled | 1d | 7d | 55% | 92% | 100% | 100% |
| 2025-01-30 | $37.36 | -7.87% | Filled | 13d | 26d | 9% | 9% | 37% | 87% |
| 2024-10-31 | $42.24 | +7.02% | Filled | 1d | 15d | 80% | 97% | 97% | 100% |
| 2023-10-26 | $42.75 | -6.32% | Filled | 5d | 7d | 15% | 94% | 100% | 100% |
| 2022-12-14 | $36.71 | -5.01% | Filled | 1d | 14d | 73% | 73% | 73% | 100% |
| 2022-07-28 | $43.37 | -8.71% | Open | — | — | 19% | 19% | 19% | 27% |
| 2022-01-27 | $48.46 | -6.16% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
Comcast (CMCSA) is trading at $25.18 after hours, down $0.02 (0.10%) from its regular-session close of $25.20.
CMCSA is down 0.10% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
After-hours trading in CMCSA on the NASDAQ runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
An after-hours move that carries into the next session becomes an opening gap, and CMCSA's gap history is the best guide to what happens next: 100% of CMCSA gap-ups have fully filled, and 88% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.
CMCSA is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $1.01. Earnings are the most common cause of a large after-hours move, since most companies report after the close.