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AMPHAmphastar Pharmaceuticals, Inc.Sell5.8·$18.88-5.98%
AMPH · Why this verdict

Why Amphastar Pharmaceuticals (AMPH) is rated SELL

Updated

Model-generated analysis — not investment advice. Not a registered investment advisor. Past performance does not guarantee future results.

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Methodology · Editorial policy & full disclaimer

VerdictSELL
Overall score5.8/10
ConfidenceMEDIUM
MacroNEUTRAL

Thesis pillars

Amphastar trades at a steep discount to what its business supports, with a forward P/E near 6.5x and a PEG ratio of just 0.08, levels the data flags as attractively valued.

Stable
Valuation breakdown
Expectation
The value score should keep ranking well ahead of peers and the discount should narrow through the next 12 months as the market re-rates the shares toward peer multiples.

CounterThe tracked price target has already been reached, which suggests the market may already be pricing in most of the near-term upside despite the low headline multiple.

The stock is in a confirmed downtrend, trading below its 200-day moving average with that average declining roughly 5.3% per month, alongside falling on-balance volume that points to distribution rather than accumulation.

Stable
Momentum breakdown
Expectation
The downtrend should persist, with price staying below the 200-day moving average and the moving-average slope remaining negative over the next 12 months.

CounterThe engine's own setup read flags an early recovery signal — despite the death cross, MACD is improving and RSI sits near 45, which could mark the start of a turn rather than a continuation of the decline.

Amphastar has missed earnings estimates in each of its last two reported quarters, by 40.5% and 20.5% respectively, and near-term estimates have been cut roughly 30% over the past month.

Stable
Earnings
Expectation
Results should return to at least in-line, with the EPS surprise moving back to 0% or better in the next reported quarter.

CounterThe underlying business still shows excellent cash conversion at 130% of net income and a strong Piotroski F-Score of 8 out of 9, fundamental signals of health that could support a rebound in reported earnings even after the recent misses.

Short interest sits at roughly 18% of float while the shares remain below their long-term trend, indicating a meaningful share of the market is positioned for continued weakness.

Stable
Key risks
Expectation
Short interest should decline meaningfully from the current ~18% level as bearish positioning unwinds if the stock stabilizes.

CounterInsider activity has been neutral over the past 90 days with no net insider selling, which tempers the bearish read from short interest and technical weakness alone.

TrendMatrix Research · core thesis

Engine thesis — one sentence

Amphastar screens statistically cheap on both earnings and growth-adjusted multiples, but the stock is in a confirmed technical downtrend with back-to-back earnings misses and falling estimates, so the re-rating case depends on stabilizing both fundamentals and the chart before the deep discount can close.

Falsifiable statement — pillar-level invalidators below. Engine-derived; not personalized advice.

Per-dimension breakdown

Value

8.4/10data confidence 100%
ComponentSub-score
P/E8.6
P/S9.5
EV/EBITDA8.0
Fwd P/E9.8
PEG10.0
Analyst target5.0
  • Forward P/E: 6.5x
  • PEG: 0.08
  • Attractively valued

Quality

5.9/10data confidence 100%
ComponentSub-score
ROE3.5
ROA3.6
Gross margin5.5
Op margin3.2
Net margin5.5
Current ratio9.1
FCF quality9.3
Moat4.5
Piotroski F8.9
  • Excellent cash conversion: 130% FCF/NI
  • No competitive moat
  • Strong Piotroski F-Score: 8/9

Growth

6.3/10data confidence 67%
ComponentSub-score
Rev growth2.6
EPS growth10.0

Momentum

2.0/10data confidence 100%
ComponentSub-score
RSI4.5
MACD2.0
OBV1.0
MA position1.0
Volume1.7
  • Volume distribution (falling OBV)
  • Below 200-MA, MA slope -5.6%/30d — confirmed downtrend

Sentiment

5.5/10data confidence 100%
ComponentSub-score
LLM sentiment4.4
Analyst rating5.0
Price target7.3

Insider

7.4/10data confidence 50%
ComponentSub-score
materiality5.0
holder change9.8
  • No net insider activity — $0 (0.000% of mkt cap)
  • Institutions accumulating

Peer rank

5.4/10data confidence 80%
ComponentSub-score
value rank8.4
quality rank6.7
growth rank2.8
  • Attractive P/E vs peers

Technical

6.3/10data confidence 100%
ComponentSub-score
bollinger8.4
support resistance8.3
52w position2.1

Risk (lower is worse)

3.9/10data confidence 100%
ComponentSub-score
short interest1.0
days to cover4.7
volatility0.0
put call7.8
implied vol0.0
max pain risk3.0
beta7.7
debt equity5.7
news risk5.5
  • High short interest: 18%
  • High IV: 86%
  • Above max pain $5
  • Concentration risks: 1 HIGH, 2 MED (10-K Item 1A — sized via position_sizing, validated via buy_confidence)

Catalyst

3.7/10data confidence 100%
ComponentSub-score
erm2.0
earnings history3.3
earnings timing5.0
surprise avg0.0
news activity8.0
  • Earnings concerns: 2B/2M

How the verdict was assembled

Engine trigger

Maintain position. Not compelling to add more. | News modifier -2 (HOLD_IF_HOLDING → SELL_IF_HOLDING).

Engine technical detail
verdict_path: L4:PATH_F_HOLD|L3:NEWS_MOD=-2
Passed (5)
  • INSIDER:OK
  • 8K:CLEAN
  • EARNINGS_PROXIMITY:30d clear
  • SEMI_CYCLE_PEAK:CLEAR
  • MATERIALS_CYCLE_PEAK:CLEAR
Failed (4)
  • MOMENTUM:2.0<4.5
  • ASYMMETRY:0.1<1.5@spot
  • DEATH_CROSS:HARD_BLOCK
  • NEWS_SOFT:FDA_NEGATIVE
Warning (0)

none

Reward-to-Risk
0.12
Upside
+1.4%
Downside
11.5%
Sizing output
AVOID

Setup No clear chart pattern; technical signals are mixed

EdgeInst Constrain Small cap ($0.9B) below institutional reach

SuitabilityAggressive MCap $0.9B<$5B

Investment implication

None of the engine's positive-conviction paths (C-quality, D-momentum) triggered — the F-path HOLD reflects balanced signals. Strongest-cleared gate: INSIDER:OK. Top dim: Value at 8.4; weakest: Momentum at 2.0. No conviction either direction.

The strongest dimensions are Value at 8.4, Insider at 7.4, and Growth at 6.3; the weakest are Momentum at 2.0, Catalyst at 3.7, and Risk (lower is worse) at 3.9. The V9 engine flagged 4 failed gates, producing an asymmetric reward-to-risk of 0.12 and an engine sizing output of AVOID.

What would invalidate the thesis

Falsifying conditions — when triggered, the corresponding pillar's thesis is invalidated.

  • P1Deep Value Mispricing

    Trip ifForward P/E falls below 5x as the shares decline further, confirming continued de-rating instead of the expected recovery toward peer multiples.

  • P2Confirmed Technical Downtrend

    Trip ifPrice closes back above the 200-day moving average and the moving-average slope turns positive for 2 consecutive months.

  • P3Earnings Miss Streak

    Trip ifEPS surprise rises above 0% for 2 consecutive quarters.

  • P4Elevated Short Interest Below Trend

    Trip ifShort interest falls below 10% of float from the current 18%.

Engine reasoning is mechanically derived from pipeline gate outputs. See decision view.

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