Decline depth
-52.6%
From rolling 252-day high of $134.01, 304d ago.
Past the 40% Red List threshold.
-52.6%
from rolling 252-day high of $134.01 set 2025-11-13 · 304d ago
Current
$63.53
Decline depth
-52.6%
Decline σ
4.7σ
TFC
3/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since tracking began
$ACM has been tracked since 2026-03-01. It was down 28.2% from its 52-week high then — now down -52.6%.
That's 24.9 percentage points deeper than the day it joined.
From the 52-week high as of 2026-03-02 to today. Split-adjusted. Observed, not a forecast.
Structural break signals
ACM qualifies for the Red List on decline depth.
Time-frame continuity
3/5 bearish
Latest bar on five time frames, daily to yearly. Bearish = 2-Down or red 3.
Past the 3/5 Watch threshold.
Decline sigma
4.7σ
Drop over the last 10 bars in units of daily volatility (2.35%/day).
Past the ≥4σ Watch threshold.
The structural read
What price action says about ACM.
ACM qualifies for the Red List on decline depth — down -52.6% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: also showing 3/5 bearish time frames.
Cross-confirmation: decline sigma also reads 4.7σ over 10 bars.
Upstream TFC read: weak alignment, current phase daily. Last bar types — daily 1 (green), weekly 2D (red), monthly 1 (red).
Earnings on file: 2026-08-10. Earnings dates don't affect tiering.
Questions about ACM
What people ask.
Why is ACM on Broken Stocks?
ACM qualifies for the Red List on decline depth. It is down -52.6% from its rolling 252-day high of $134.01, set on 2025-11-13 — 304d ago.
Is ACM a falling knife?
Not by the strict technical definition. ACM is down -52.6% from its 52-week high, but that high was set 304d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. ACM is still on the Red List for decline depth, but the freshness component of a falling knife is missing.
Is ACM 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 ACM trading inside its 52-week range?
At $63.53, ACM sits 4.2% of the way from its 52-week low ($60.35) to its 52-week high ($135.52). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has ACM been declining?
The current 52.6% decline accrued over 304d, which annualizes to roughly -63.2% 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 ACM compare to its sector?
There are 341 other Industrials tickers on Broken Stocks: 192 Red, 86 Amber, 63 Watch, with 33 showing recovering structural signals. Median sector decline is -36.1% — ACM's decline is deeper than the sector median.
Does ACM'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 (2026-08-10) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.