Decline depth
-48.9%
From rolling 252-day high of $24.23, 31d ago.
Past the 40% Red List threshold.
Red List
AMPXAmprius Technologies, Inc.
Industrials · Electrical Equipment & Parts · small-cap ($1.9B)
-48.9%
from rolling 252-day high of $24.23 set 2026-06-02 · 31d ago
Current
$12.38
Decline depth
-48.9%
Decline σ
7.8σ
TFC
2/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since tracking began
$AMPX has been tracked since 2026-03-01. It was down 27.7% from its 52-week high then — now down -48.9%.
It has clawed back 4.9 percentage points off that level. It bottomed 27.7% below that high along the way.
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
AMPX 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
7.8σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (5.99% per day).
Past the ≥6σ Amber threshold.
The structural read
What price action says about AMPX.
AMPX qualifies for the Red List on decline depth — down -48.9% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy. Depth plus recency: this is the pattern many investors call a falling knife.
Cross-confirmation: decline sigma also reads 7.8σ over 20 bars.
Earnings on file: 2026-05-06. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $3.92
41.7% of range
52W high $24.23
Sector context · Industrials
135 other Industrials tickers are on Broken Stocks.
50
Red List
27
Amber
58
Watch
-29.5%
Median decline
Worst in sector: BYRN (-79.7%). Least-bad: IR (-20.1%). See all Industrials listings →
Related — same sector
Closest decliners to AMPX
Red List
ACM
AECOM
Red ListRecovering
BAH
Booz Allen Hamilton Holding Cor
Red List
HURN
Huron Consulting Group Inc.
Red List
AMSC
American Superconductor Corpora
Red List
JBI
Janus International Group, Inc.
Red List
BKSY
BlackSky Technology Inc.
Questions about AMPX
What people ask.
Why is AMPX on Broken Stocks?
AMPX qualifies for the Red List on decline depth. It is down -48.9% from its rolling 252-day high of $24.23, set on 2026-06-02 — 31d ago.
Is AMPX a falling knife?
By the most common technical definition — a steep, recent breakdown from a fresh high — yes. AMPX is down -48.9% from its 52-week high of $24.23, set 31d ago. That combination of depth (past the 30% Amber threshold) and recency (high set inside the last 120 days) is the textbook falling-knife pattern. Whether to try to catch it is a separate question — historically most attempts to bottom-pick continue lower before reversing. Broken Stocks flags the pattern; it does not recommend buying or selling.
Is AMPX 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 AMPX trading inside its 52-week range?
At $12.38, AMPX sits 41.7% of the way from its 52-week low ($3.92) to its 52-week high ($24.23). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has AMPX been declining?
The current 48.9% decline accrued over 31d, which annualizes to roughly -575.8% 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 AMPX compare to its sector?
There are 135 other Industrials tickers on Broken Stocks: 50 Red, 27 Amber, 58 Watch, with 42 showing recovering structural signals. Median sector decline is -29.5% — AMPX's decline is deeper than the sector median.
Does AMPX'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 (2026-05-06) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.