Decline depth
-44.7%
From rolling 252-day high of $31.26, 254d ago.
Past the 40% Red List threshold.
Red List
AMPH
Amphastar Pharmaceuticals, Inc.
Healthcare · Drug Manufacturers - Specialty & Generic · small-cap ($900M)
-44.7%
from rolling 252-day high of $31.26 set 2025-09-02 · 254d ago
Current
$17.30
Decline depth
-44.7%
Decline σ
5.1σ
TFC
4/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Structural break signals
AMPH qualifies for the Red List on decline depth.
Time-frame continuity
4/5 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.
Past the 4/5 Amber threshold.
Decline sigma
5.1σ
Drop from local high over the last 10 bars, expressed in units of the stock's typical daily volatility (5.74% per day).
Past the ≥4σ Watch threshold.
The structural read
What price action says about AMPH.
AMPH qualifies for the Red List on decline depth — down -44.7% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: also showing 4/5 bearish time frames.
Cross-confirmation: decline sigma also reads 5.1σ over 10 bars.
Earnings on file: 2026-02-26. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $17.03
1.9% of range
52W high $31.26
Sector context · Healthcare
182 other Healthcare tickers are on Broken Stocks.
92
Red List
43
Amber
47
Watch
-35.8%
Median decline
Worst in sector: OPRX (-76.7%). Least-bad: ANIP (-20.0%). See all Healthcare listings →
Related — same sector
Closest decliners to AMPH
Red List
ICLR
ICON plc
Red List
ORIC
Oric Pharmaceuticals, Inc.
Red List
BAX
Baxter International Inc.
Red List Recovering
VTYX
Ventyx Biosciences, Inc.
Red List
INSM
Insmed Incorporated
Red List
IRTC
iRhythm Holdings, Inc.
Questions about AMPH
What people ask.
Why is AMPH on Broken Stocks?
AMPH qualifies for the Red List on decline depth. It is down -44.7% from its rolling 252-day high of $31.26, set on 2025-09-02 — 254d ago.
Is AMPH a falling knife?
Not by the strict technical definition. AMPH is down -44.7% from its 52-week high, but that high was set 254d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. AMPH is still on the Red List for decline depth, but the freshness component of a falling knife is missing.
Is AMPH 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 AMPH trading inside its 52-week range?
At $17.30, AMPH sits 1.9% of the way from its 52-week low ($17.03) to its 52-week high ($31.26). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has AMPH been declining?
The current 44.7% decline accrued over 254d, which annualizes to roughly -64.2% 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 AMPH compare to its sector?
There are 182 other Healthcare tickers on Broken Stocks: 92 Red, 43 Amber, 47 Watch, with 55 showing recovering structural signals. Median sector decline is -35.8% — AMPH's decline is deeper than the sector median.
Does AMPH'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 (2026-02-26) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.