vs

Side-by-side financial comparison of Amphastar Pharmaceuticals, Inc. (AMPH) and Core Laboratories Inc. (CLB). Click either name above to swap in a different company.

Amphastar Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($183.1M vs $138.3M, roughly 1.3× Core Laboratories Inc.). Amphastar Pharmaceuticals, Inc. runs the higher net margin — 13.3% vs 5.3%, a 8.1% gap on every dollar of revenue. On growth, Core Laboratories Inc. posted the faster year-over-year revenue change (2.8% vs -1.8%). Amphastar Pharmaceuticals, Inc. produced more free cash flow last quarter ($24.6M vs $5.1M). Over the past eight quarters, Amphastar Pharmaceuticals, Inc.'s revenue compounded faster (3.2% CAGR vs 2.9%).

Amphastar Pharmaceuticals is a publicly traded American speciality pharmaceutical company. It was incorporated in May 2004 and primarily develops, manufactures, and sells inhalation and intranasal products.

Abbott Laboratories, commonly known as Abbott, is an American multinational medical devices and health care company with headquarters in Abbott Park, Illinois. The company produces pharmaceuticals for sale outside the United States, diagnostic products, nutritional products, and medical devices.

AMPH vs CLB — Head-to-Head

Bigger by revenue
AMPH
AMPH
1.3× larger
AMPH
$183.1M
$138.3M
CLB
Growing faster (revenue YoY)
CLB
CLB
+4.6% gap
CLB
2.8%
-1.8%
AMPH
Higher net margin
AMPH
AMPH
8.1% more per $
AMPH
13.3%
5.3%
CLB
More free cash flow
AMPH
AMPH
$19.4M more FCF
AMPH
$24.6M
$5.1M
CLB
Faster 2-yr revenue CAGR
AMPH
AMPH
Annualised
AMPH
3.2%
2.9%
CLB

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMPH
AMPH
CLB
CLB
Revenue
$183.1M
$138.3M
Net Profit
$24.4M
$7.3M
Gross Margin
46.8%
Operating Margin
19.4%
11.5%
Net Margin
13.3%
5.3%
Revenue YoY
-1.8%
2.8%
Net Profit YoY
-35.7%
1.2%
EPS (diluted)
$0.51
$0.16

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMPH
AMPH
CLB
CLB
Q1 26
$138.3M
Q4 25
$183.1M
$138.3M
Q3 25
$191.8M
$134.5M
Q2 25
$174.4M
$130.2M
Q1 25
$170.5M
$123.6M
Q4 24
$186.5M
$129.2M
Q3 24
$191.2M
$134.4M
Q2 24
$182.4M
$130.6M
Net Profit
AMPH
AMPH
CLB
CLB
Q1 26
$7.3M
Q4 25
$24.4M
$4.9M
Q3 25
$17.4M
$14.2M
Q2 25
$31.0M
$10.6M
Q1 25
$25.3M
$-154.0K
Q4 24
$38.0M
$7.4M
Q3 24
$40.4M
$11.7M
Q2 24
$37.9M
$9.0M
Gross Margin
AMPH
AMPH
CLB
CLB
Q1 26
Q4 25
46.8%
20.8%
Q3 25
51.4%
22.0%
Q2 25
49.6%
20.3%
Q1 25
50.0%
19.5%
Q4 24
46.5%
17.8%
Q3 24
53.3%
20.5%
Q2 24
52.2%
21.2%
Operating Margin
AMPH
AMPH
CLB
CLB
Q1 26
11.5%
Q4 25
19.4%
11.5%
Q3 25
13.2%
15.6%
Q2 25
24.2%
11.7%
Q1 25
21.9%
3.6%
Q4 24
24.2%
11.0%
Q3 24
29.8%
14.7%
Q2 24
30.3%
12.3%
Net Margin
AMPH
AMPH
CLB
CLB
Q1 26
5.3%
Q4 25
13.3%
3.6%
Q3 25
9.0%
10.6%
Q2 25
17.8%
8.2%
Q1 25
14.8%
-0.1%
Q4 24
20.4%
5.7%
Q3 24
21.1%
8.7%
Q2 24
20.8%
6.9%
EPS (diluted)
AMPH
AMPH
CLB
CLB
Q1 26
$0.16
Q4 25
$0.51
$0.11
Q3 25
$0.37
$0.30
Q2 25
$0.64
$0.22
Q1 25
$0.51
$0.00
Q4 24
$0.74
$0.15
Q3 24
$0.78
$0.25
Q2 24
$0.73
$0.19

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMPH
AMPH
CLB
CLB
Cash + ST InvestmentsLiquidity on hand
$282.8M
$22.8M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
$279.8M
Total Assets
$1.6B
$597.0M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
CLB
CLB
Q1 26
$22.8M
Q4 25
$282.8M
$22.7M
Q3 25
$276.2M
$25.6M
Q2 25
$231.8M
$31.2M
Q1 25
$236.9M
$22.1M
Q4 24
$221.6M
$19.2M
Q3 24
$250.5M
$21.5M
Q2 24
$217.8M
$17.7M
Total Debt
AMPH
AMPH
CLB
CLB
Q1 26
Q4 25
$608.7M
$110.3M
Q3 25
$608.6M
$114.1M
Q2 25
$607.7M
$124.6M
Q1 25
$603.9M
$124.4M
Q4 24
$601.6M
$126.1M
Q3 24
$596.4M
$139.9M
Q2 24
$586.9M
$147.6M
Stockholders' Equity
AMPH
AMPH
CLB
CLB
Q1 26
$279.8M
Q4 25
$788.8M
$266.0M
Q3 25
$776.7M
$271.3M
Q2 25
$757.5M
$261.3M
Q1 25
$751.3M
$253.4M
Q4 24
$732.3M
$246.6M
Q3 24
$727.7M
$250.7M
Q2 24
$713.3M
$240.3M
Total Assets
AMPH
AMPH
CLB
CLB
Q1 26
$597.0M
Q4 25
$1.6B
$584.0M
Q3 25
$1.7B
$591.4M
Q2 25
$1.6B
$602.1M
Q1 25
$1.6B
$591.5M
Q4 24
$1.6B
$585.1M
Q3 24
$1.5B
$600.5M
Q2 24
$1.5B
$597.8M
Debt / Equity
AMPH
AMPH
CLB
CLB
Q1 26
Q4 25
0.77×
0.41×
Q3 25
0.78×
0.42×
Q2 25
0.80×
0.48×
Q1 25
0.80×
0.49×
Q4 24
0.82×
0.51×
Q3 24
0.82×
0.56×
Q2 24
0.82×
0.61×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMPH
AMPH
CLB
CLB
Operating Cash FlowLast quarter
$32.9M
$37.2M
Free Cash FlowOCF − Capex
$24.6M
$5.1M
FCF MarginFCF / Revenue
13.4%
3.7%
Capex IntensityCapex / Revenue
4.5%
Cash ConversionOCF / Net Profit
1.35×
5.12×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$27.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
CLB
CLB
Q1 26
$37.2M
Q4 25
$32.9M
$7.9M
Q3 25
$52.6M
$8.5M
Q2 25
$35.6M
$13.9M
Q1 25
$35.1M
$6.7M
Q4 24
$29.0M
$20.6M
Q3 24
$60.0M
$13.1M
Q2 24
$69.1M
$17.1M
Free Cash Flow
AMPH
AMPH
CLB
CLB
Q1 26
$5.1M
Q4 25
$24.6M
$5.0M
Q3 25
$47.2M
$6.5M
Q2 25
$25.0M
$10.4M
Q1 25
$24.4M
$3.9M
Q4 24
$16.6M
$17.4M
Q3 24
$46.2M
$10.4M
Q2 24
$63.1M
$14.3M
FCF Margin
AMPH
AMPH
CLB
CLB
Q1 26
3.7%
Q4 25
13.4%
3.6%
Q3 25
24.6%
4.8%
Q2 25
14.3%
8.0%
Q1 25
14.3%
3.1%
Q4 24
8.9%
13.4%
Q3 24
24.1%
7.7%
Q2 24
34.6%
10.9%
Capex Intensity
AMPH
AMPH
CLB
CLB
Q1 26
Q4 25
4.5%
2.1%
Q3 25
2.8%
1.5%
Q2 25
6.1%
2.7%
Q1 25
6.3%
2.3%
Q4 24
6.7%
2.5%
Q3 24
7.2%
2.0%
Q2 24
3.3%
2.2%
Cash Conversion
AMPH
AMPH
CLB
CLB
Q1 26
5.12×
Q4 25
1.35×
1.61×
Q3 25
3.03×
0.60×
Q2 25
1.15×
1.31×
Q1 25
1.39×
Q4 24
0.76×
2.78×
Q3 24
1.48×
1.12×
Q2 24
1.82×
1.90×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMPH
AMPH

Other Products$62.4M34%
Baqsimi$46.7M26%
Primatenemist$27.9M15%
Epinephrine$17.1M9%
Lidocaine$14.9M8%
Glucagon$14.1M8%

CLB
CLB

Segment breakdown not available.

Related Comparisons