177.89 USD
↗ 0.04 (0.02%)AFTER HOURS (AS OF Fri 08:11 PM EDT)
AMT Stock After Hours
American Tower Corporation
AMTNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
AMT last traded at $177.88 after hours, up $0.04 (0.02%) from its regular-session close of $177.85.
📅 AMT is expected to report earnings around Oct 27, 2026 before the open (estimated), with an estimated EPS of $1.64. AMT earnings details →
AMT After Hours Chart
AMT After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, AMT has had 3 qualifying gap events (gaps of 5% or more at the open) — 2 gap-ups and 1 gap-down. Gap-ups averaged +5.5%, 0% have fully filled. Gap-downs averaged -6.1%, 0% have fully filled. Most recent: a -6.1% gap down on Nov 6, 2024, still unfilled. Average 20-trading-day return after a AMT gap up: +4.86%. After a gap down: +4.16%.
Gap Ups2 events
Fill Rate
0.0%
Avg Gap
5.5%
Avg 50% Fill
42d
Avg Fill
—
Gap Downs1 events
Fill Rate
0.0%
Avg Gap
6.1%
Avg 50% Fill
14d
Avg Fill
—
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 50% | 50% |
| fills 50% | 0% | 0% | 0% | 0% |
| fills 75% | 0% | 0% | 0% | 0% |
| fills 100% | 0% | 0% | 0% | 0% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 0% | 0% | 0% | 100% |
| fills 50% | 0% | 0% | 0% | 100% |
| fills 75% | 0% | 0% | 0% | 0% |
| fills 100% | 0% | 0% | 0% | 0% |
Complete Gap History — 3 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2024-11-06 | $213.85 | -6.10% | Open | 14d | — | 18% | 19% | 19% | 69% |
| 2023-11-14 | $183.62 | +5.09% | Open | 56d | — | 22% | 22% | 22% | 22% |
| 2022-11-10 | $201.04 | +6.00% | Open | 28d | — | 29% | 29% | 29% | 32% |
Frequently Asked Questions
What is AMT's after-hours price?
American Tower (AMT) is trading at $177.88 after hours, up $0.04 (0.02%) from its regular-session close of $177.85.
Why is AMT moving after hours?
AMT is up 0.02% 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.
When does AMT after-hours trading start and end?
After-hours trading in AMT on the NYSE 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.
Will AMT's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and AMT's gap history is the best guide to what happens next: 0% of AMT gap-ups have fully filled, and 0% 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.
When does AMT report earnings?
AMT is expected to report earnings around Oct 27, 2026 before the open (estimated), with an estimated EPS of $1.64. Earnings are the most common cause of a large after-hours move, since most companies report after the close.