Decline depth
-47.4%
From rolling 252-day high of $134.61, 196d ago.
Past the 40% Red List threshold.
-47.4%
from rolling 252-day high of $134.61 set 2025-11-13 · 196d ago
Current
$70.87
Decline depth
-47.4%
Decline σ
6.0σ
TFC
2/5 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 -47.4%.
That's 19.4 percentage points deeper than the day it joined.
Decline from the 52-week high as it stood on 2026-03-02 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.
Structural break signals
ACM qualifies for the Red List on decline depth.
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
6.0σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (2.99% per day).
Past the ≥6σ Amber threshold.
The structural read
What price action says about ACM.
ACM qualifies for the Red List on decline depth — down -47.4% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: decline sigma also reads 6.0σ over 20 bars.
Upstream TFC read: bearish alignment, current phase daily. Last bar types — daily 2D (red), weekly 2U (red), monthly 2D (red).
Earnings on file: 2026-05-11. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $67.64
4.8% of range
52W high $135.52
Sector context · Industrials
137 other Industrials tickers are on Broken Stocks.
56
Red List
34
Amber
47
Watch
-30.7%
Median decline
Worst in sector: CAR (-79.4%). Least-bad: HUBG (-20.1%). See all Industrials listings →
Related — same sector
Closest decliners to ACM
Red List
ROCK
Gibraltar Industries, Inc.
Red ListRecovering
NSP
Insperity, Inc.
Red List
LMB
Limbach Holdings, Inc.
Red ListRecovering
AVAV
AeroVironment, Inc.
Red ListRecovering
VRSK
Verisk Analytics, Inc.
Red ListRecovering
TNET
TriNet Group, Inc.
Questions about ACM
What people ask.
Why is ACM on Broken Stocks?
ACM qualifies for the Red List on decline depth. It is down -47.4% from its rolling 252-day high of $134.61, set on 2025-11-13 — 196d ago.
Is ACM a falling knife?
Not by the strict technical definition. ACM is down -47.4% from its 52-week high, but that high was set 196d 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 $70.87, ACM sits 4.8% of the way from its 52-week low ($67.64) 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 47.4% decline accrued over 196d, which annualizes to roughly -88.3% 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 137 other Industrials tickers on Broken Stocks: 56 Red, 34 Amber, 47 Watch, with 83 showing recovering structural signals. Median sector decline is -30.7% — 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 (2026-05-11) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.