AMPH NASDAQ Week ended 31 Jul 2026

Weekly Investor Report

Amphastar P · Healthcare · Drug Manufacturers - Specialty & Generic

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Latest close 19.94 USD
6.5% latest week
Weekly setup

Mixed setup

The weekly trend is not active. Price is -7.4% below the Trend Line and sits at 22.5% of its 52-week range. The latest completed week returned 6.5%, after a 1.5% four-week move. The latest factor snapshot indicates quality ranks strongly versus its universe; growth is moderate; valuation is inexpensive relative to peers. Options positioning is mixed with 25/100 conviction, while the latest news-sentiment score is 47/100. Near-term considerations: volume confirmation is below normal; earnings are due in 5d.

Setup score 27 out of 100
Latest Close 19.94 USD 31 Jul 2026
1W Return 6.5% latest completed week
4W Return 1.5% short-term follow-through
12W Return 4.9% quarterly tape
Trend Breadth 32.7% 17 of 52 weeks active
Volume Ratio 0.6x vs 13-week average
What is working
  • No strong opportunity cluster is confirmed yet; monitor trend and activity pressure.
What could go wrong
  • The trend backdrop is inactive, so price action has not confirmed a constructive regime.
  • Price is below the Trend Line, which keeps downside pressure in focus.
  • Price is below Fair Value, so the market is still discounting the latest tape.
  • Activity pressure is negative, which weakens the current setup.
What to watch next
  • Trend Line remains the key weekly regime level.
  • Activity pressure is the gauge to monitor for confirmation or fade.
  • A volume ratio above 1.5x would show stronger participation in the next move.
Price follow-through 6.5% Latest completed week; four-week move 1.5%. Indicator stack 18/41 Trend and activity pressure are weighted against the latest 12-week confirmation window. Trend backdrop Active The trend backdrop defines the current weekly regime. Patient Capital Recent Activity-pressure buy-signal status for institutional accumulation timing. Options pressure Mixed 25/100 conviction; expected move 10.2%. News sentiment 47/100 44 relevant articles in the latest sentiment read. Event risk 5d Next report is scheduled for 06 Aug 2026; event risk rises as the date approaches.
01 · Price action

Where price is—and whether the trend supports it

The weekly trend is not active. Price is -7.4% below the Trend Line and sits at 22.5% of its 52-week range. The latest completed week returned 6.5%, after a 1.5% four-week move.

Study the full chart

52-week price path

Price vs Trend Line and Fair Value
Price Trend Line Fair Value
02 · Volume and demand

Is real participation confirming the move?

Latest weekly volume is 0.6x the 13-week average. Participation is below its recent norm, so price strength is not receiving full volume confirmation.

26-week volume confirmation

Bar height shows volume; colour shows the weekly price direction
6 Feb 13 Feb 20 Feb 27 Feb 6 Mar 13 Mar 20 Mar 27 Mar 3 Apr 10 Apr 17 Apr 24 Apr 1 May 8 May 15 May 22 May 29 May 5 Jun 12 Jun 19 Jun 26 Jun 3 Jul 10 Jul 17 Jul 24 Jul 31 Jul
Up week Down week
Demand beneath price

Activity pressure and institutional-style signals

These indicators assess whether participation is improving beneath the headline price move. They are supporting evidence, not proof of institutional buying.

Activity pressure path

Latest 0.0712-week average 0.05

12-week confirmation

Trend active0/12Active trend-backdrop weeks in the latest 12-week window.
Positive pressure5/12Weeks with constructive activity pressure in the latest 12-week window.
Positive leadership0/12Weeks with positive relative leadership in the latest 12-week window.
Activity pressure0.07Current proprietary activity-pressure read.
Buy signals1Accumulation signal count in the latest 12 weeks.
Reversal markers0No reversal markers

No recent accumulation markers. No reversal markers.

03 · Momentum and leadership

Is performance persistent—and is the stock leading?

Performance is 1.5% over four weeks, 4.9% over 12 weeks, and -6.0% over one year. The current trend has remained active for 0 consecutive weeks.

Performance by holding period

1W6.5%
4W1.5%
12W4.9%
26W-24.7%
52W-6.0%
Active trend streak0 weeks
Active weeks in one year17
Trend breadth32.7%

Activity pressure vs relative leadership

Activity pressureRelative leadership
Pressure-0.02Latest activity-pressure read.
Pressure change-103.9%Four-week change in activity pressure.
Leadership-23.84Latest relative-leadership reading.
RS change18.2%Four-week change in relative leadership.
04 · Fundamentals and valuation

What investors are paying for—and the quality behind it

The latest factor snapshot indicates quality ranks strongly versus its universe; growth is moderate; valuation is inexpensive relative to peers.

Open full factor analysis
Factor week 26 Jul 2026 Financial statements through 31 Mar 2026 Field coverage 97% Model confidence 93%

Relative factor standing

Higher display scores are better. Each score is converted from the underlying universe rank, where rank 1 is best.

Overall factor strength87/100Blend of value, momentum, and quality. Underlying universe rank 14; rank 1 is best.
Value93/100Relative valuation strength. Underlying universe rank 8; rank 1 is best.
Quality81/100Profitability and accounting quality. Underlying universe rank 20; rank 1 is best.
Momentum20/100Medium-term price momentum. Underlying universe rank 81; rank 1 is best.
Growth29/100Revenue and earnings growth. Underlying universe rank 72; rank 1 is best.
How to read this

Quality and valuation are separate questions

A strong company can still carry a demanding valuation. This report shows profitability, growth, balance-sheet strength, and the price paid for those characteristics separately.

Value-quality framework72/100Value and quality alignment from the Sharemaestro SVQF framework.

Valuation

How much investors are paying for earnings, sales, and cash flow.

P/E
10.4x
Price divided by trailing earnings.
Price / sales
1.1x
Market value relative to trailing revenue.
EV / EBITDA
7.0x
Enterprise value relative to operating cash earnings.
Free-cash-flow yield
15.1%
Free cash flow as a share of enterprise value.

Business quality

Margins and the return generated on invested capital.

Gross margin
47.3%
Gross profit retained from each unit of revenue.
Operating margin
17.8%
Operating profit retained from revenue.
Free-cash-flow margin
28.1%
Free cash flow generated from revenue.
Return on invested capital
7.7%
Operating return generated on invested capital.

Growth and financial strength

Recent business growth and accounting strength.

Revenue growth
-1.1%
Latest one-year revenue growth.
EPS growth
-44.1%
Latest one-year earnings-per-share growth.
Free-cash-flow growth
-14.2%
Latest one-year free-cash-flow growth.
Piotroski F-score
6/9
Nine-point accounting-strength checklist.

Shareholder return and balance sheet

Cash returned to owners and financial leverage.

Dividend yield
-
Cash dividends relative to market value.
Buyback yield
11.1%
Net share repurchases relative to market value.
Shareholder yield
11.1%
Dividend yield plus net buyback yield.
Net debt / EBITDA
2.7x
Balance-sheet debt relative to operating cash earnings.
05 · Ownership, options, and sentiment

What other market participants are doing

Options, insider transactions, market sentiment, and activity-pressure signals can confirm or challenge the price story. None should be used alone.

Options positioningMixed

AMPH shows mixed options pressure with a 25/100 conviction score, put-call volume ratio of n/a, expected move of 10.2%, and Sharemaestro trend signal inactive.

Conviction25/100
Expected move10.2%
Put/call volume
Pressure11
Speculation0
Volatility69
Trend agreement54
Open options detail
Insider activity14 / 1

14 acquisitions and 1 disposals in the latest 180-day insider tape.

Acquisitions / disposals over the latest 180 days. Insider activity is context, not a stand-alone signal.
News sentiment47/100

Weighted news tone is neutral across 44 relevant articles.

3 positive · 30 neutral · 11 negative
Patient CapitalRecent

Activity-pressure buy-signal evidence highlights potential institutional accumulation windows.

Recent buy signal in the last 8 weeks
06 · Catalysts and risk

What can move the shares—and how volatile the path has been

Event timing, options-implied movement, drawdown, and weekly return distribution frame the risk around the current setup.

Next earnings5dNext report is scheduled for 06 Aug 2026; event risk rises as the date approaches.
Options expected move10.2%Nearest-chain priced movement where available.
52-week drawdown-36.2%Distance below the 52-week high.
13-week volatility8.4%Standard deviation of weekly returns.

Weekly gains and losses

Latest 26 completed weeks

Each bar is one week. Gains rise above the zero line; losses fall below it. Taller bars mean a larger weekly move.

Weeks higher13 of 2613 weeks finished lower.
Best week+15.8%Week of 26 Jun.
Worst week-29.1%Week of 27 Feb.
Latest week+6.5%Week of 31 Jul.

Shape of recent returns

Strong gains9
Modest gains4
Flat weeks0
Modest losses3
Sharp losses10
Recent vol8.4%13-week weekly-return volatility.
Base vol8.3%52-week weekly-return volatility.
Up/down split26/26Count of positive and negative weeks in the 52-week window.
Average skew6.3% / -5.8%Average positive week versus average negative week.
07 · Sector and peer context

Is this stock leading—or simply moving with its group?

Sector and industry breadth distinguish company-specific strength from a broad group move.

08 · Evidence and weekly data

The underlying research record

Every top-level statement above should be traceable to a stored market, fundamental, event, or positioning observation.

Weekly tape23/100

Trend, activity pressure, participation, and risk combine to a 23/100 tape read.

 Indicator analysis18/100

Latest 12-week confirmation: trend 0/12, activity pressure 5/12, relative leadership 0/12.

Activity pressure 0.07; No reversal markers Factors71/100

O'Shaughnessy factor stack blends value, quality, momentum, and confidence.

Buyback Yield rank 5; Small Cap Core rank 5 SVQF72/100

Value and quality alignment from the Sharemaestro SVQF framework.

Composite rank 203.0 of 726 Patient CapitalRecent

Activity-pressure buy-signal evidence highlights potential institutional accumulation windows.

Recent buy signal in the last 8 weeks Options44/100

AMPH shows mixed options pressure with a 25/100 conviction score, put-call volume ratio of n/a, expected move of 10.2%, and Sharemaestro trend signal inactive.

Mixed · Options-market disagreement · Expected move 10.2% Sentiment47/100

Weighted news tone is neutral across 44 relevant articles.

Rice Hall James & Associates LLC Increases Position in Amphastar Pharmaceuticals, Inc. $AMPH Insiders14 / 1

14 acquisitions and 1 disposals in the latest 180-day insider tape.

 Earnings5d

Next report is scheduled for 06 Aug 2026; event risk rises as the date approaches.
WeekCloseReturnTrend LineFair ValuePressureLeadershipVolumeTrend
31 Jul 202619.94 USD6.5%21.54 USD35.51 USD-0.02-23.841.7MOff
24 Jul 202618.72 USD-5.2%21.75 USD35.78 USD-0.03-28.452.6MOff
17 Jul 202619.75 USD5.5%22.03 USD36.05 USD0.21-26.191.8MOff
10 Jul 202618.72 USD-4.7%22.26 USD36.32 USD0.29-33.222.0MOff
3 Jul 202619.64 USD-9.8%22.48 USD36.56 USD0.41-29.141.9MOff
26 Jun 202621.78 USD15.8%22.72 USD36.79 USD0.46-21.303.2MOff
19 Jun 202618.81 USD-6.4%22.91 USD37.02 USD0.11-35.453.6MOff
12 Jun 202620.09 USD1.8%23.16 USD37.27 USD-0.08-29.952.3MOff
5 Jun 202619.74 USD4.7%23.35 USD37.49 USD-0.30-30.303.1MOff
29 May 202618.85 USD2.4%23.50 USD37.66 USD-0.45-37.082.6MOff
22 May 202618.41 USD9.1%23.72 USD37.83 USD-0.42-37.484.6MOff
15 May 202616.87 USD-11.2%23.92 USD38.00 USD-0.45-42.625.0MOff
8 May 202619.00 USD-13.2%24.15 USD38.17 USD-0.42-36.303.6MOff
1 May 202621.88 USD2.2%24.31 USD38.32 USD-0.54-23.411.6MOff
How to use this report

This is a completed-week research summary. It explains the available evidence and its conflicts; it does not predict a guaranteed outcome or replace your own risk assessment. Fundamental figures may refer to an earlier financial reporting period, which is shown above.