Watch

MLMMartin Marietta Materials, Inc.

Basic Materials · Building Materials · large-cap ($33.3B)
-25.9%
from rolling 252-day high of $709.08 set 2026-02-10 · 191d ago
Current
$525.27
Decline depth
-25.9%
Decline σ
4.6σ
TFC
2/5 bearish
Rolling 252-day high Up day Down day Last 90 trading days · data from Alpaca

Since it joined the list

$MLM landed on the list 2026-03-18, down 20.1% from its 52-week high that day — now down -25.9%.

That's 4.7 percentage points deeper than the day it joined.

Decline from the 52-week high as it stood on 2026-03-18 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.

Structural break signals

MLM qualifies for the Watch on decline depth.

Decline depth
-25.9%
From rolling 252-day high of $709.08, 191d ago. Past the 20% Watch threshold.
Time-frame continuity
2/5 bearish
Latest bar across daily/weekly/monthly/quarterly/yearly time frames. A bar counts as bearish when it's a 2-Down or a red 3.
Decline sigma
4.6σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (2.38% per day). Past the ≥4σ Watch threshold.

The structural read

What price action says about MLM.

MLM qualifies for the Watch on decline depth — down -25.9% from its rolling 252-day high.

Cross-confirmation: decline sigma also reads 4.6σ over 20 bars.

Earnings on file: 2026-04-30. Tiering is unaffected by earnings dates — listings reflect price structure only.

Questions about MLM

What people ask.

Why is MLM on Broken Stocks?

MLM qualifies for the Watch on decline depth. It is down -25.9% from its rolling 252-day high of $709.08, set on 2026-02-10 — 191d ago.

Is MLM a falling knife?

No. The falling-knife label usually implies a steep, severe drop — typically 30% or more from a fresh high. MLM is down -25.9% from its 52-week high, which qualifies for the Watch tier but is shallower than the falling-knife pattern. It's an early-stage decline rather than a sharp breakdown.

Is MLM a buy?

Broken Stocks does not issue buy or sell recommendations. The list is a rules-based technical warning system. It tracks structural decline depth and recency — not company quality, management, fundamentals, or news. Always do your own research and consult a licensed advisor.

Where is MLM trading inside its 52-week range?

At $525.27, MLM sits 0.0% of the way from its 52-week low ($525.38) to its 52-week high ($710.97). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.

How fast has MLM been declining?

The current 25.9% decline accrued over 191d, which annualizes to roughly -49.5% per year. Annualized pace is a sanity check — a 30% decline in three months is a different signal than a 30% decline over two years.

How does MLM compare to its sector?

There are 58 other Basic Materials tickers on Broken Stocks: 24 Red, 17 Amber, 17 Watch, with 17 showing recovering structural signals. Median sector decline is -33.5% — MLM's decline is shallower than the sector median.

Does MLM's earnings date affect its tier?

No. Tiering is decided purely by decline depth and recency of the rolling-high date. The earnings date on file (2026-04-30) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.