509.50 USD
↘ 0.46 (0.09%)AFTER HOURS (AS OF Fri 08:15 PM EDT)
MLM Stock After Hours
Martin Marietta Materials
MLMNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
MLM last traded at $509.50 after hours, down $0.46 (0.09%) from its regular-session close of $509.96.
📅 MLM is expected to report earnings around Nov 3, 2026 before the open (estimated), with an estimated EPS of $6.72. MLM earnings details →
MLM After Hours Chart
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, MLM has had 3 qualifying gap events (gaps of 5% or more at the open) — 1 gap-up and 2 gap-downs. Gap-ups averaged +8.5%, 0% have fully filled. Gap-downs averaged -5.4%, 50% have fully filled, median time to fill 2 trading days. Most recent: a -5.5% gap down on Jun 29, 2026, still unfilled. Average 20-trading-day return after a MLM gap up: +3.78%. After a gap down: -3.49%.
Gap Ups1 events
Fill Rate
0.0%
Avg Gap
8.5%
Avg 50% Fill
—
Avg Fill
—
Gap Downs2 events
Fill Rate
50.0%
Avg Gap
5.4%
Avg 50% Fill
2.5d
Avg Fill
2d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| 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% | 100% | 100% | 100% | 100% |
| fills 50% | 50% | 100% | 100% | 100% |
| fills 75% | 50% | 50% | 50% | 50% |
| fills 100% | 0% | 50% | 50% | 50% |
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 | ||||||
| 2026-06-29 | $616.06 | -5.52% | Open | 4d | — | 36% | 74% | 74% | 74% |
| 2025-02-12 | $529.00 | -5.21% | Filled | 1d | 2d | 93% | 100% | 100% | 100% |
| 2023-05-04 | $368.55 | +8.52% | Open | — | — | 49% | 49% | 49% | 49% |
Frequently Asked Questions
What is MLM's after-hours price?
Martin Marietta Materials (MLM) is trading at $509.50 after hours, down $0.46 (0.09%) from its regular-session close of $509.96.
Why is MLM moving after hours?
MLM is down 0.09% 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 MLM after-hours trading start and end?
After-hours trading in MLM 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 MLM's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and MLM's gap history is the best guide to what happens next: 0% of MLM gap-ups have fully filled, and 50% 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 MLM report earnings?
MLM is expected to report earnings around Nov 3, 2026 before the open (estimated), with an estimated EPS of $6.72. Earnings are the most common cause of a large after-hours move, since most companies report after the close.