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Side-by-side financial comparison of Amphastar Pharmaceuticals, Inc. (AMPH) and SILICON LABORATORIES INC. (SLAB). Click either name above to swap in a different company.

SILICON LABORATORIES INC. is the larger business by last-quarter revenue ($208.2M vs $183.1M, roughly 1.1× Amphastar Pharmaceuticals, Inc.). On growth, SILICON LABORATORIES INC. posted the faster year-over-year revenue change (25.2% vs -1.8%). Amphastar Pharmaceuticals, Inc. produced more free cash flow last quarter ($24.6M vs $-1.6M). Over the past eight quarters, SILICON LABORATORIES INC.'s revenue compounded faster (39.9% CAGR vs 3.2%).

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.

Silicon Laboratories, Inc., commonly referred to as Silicon Labs, is a fabless global technology company that designs and manufactures semiconductors, other silicon devices and software, which it sells to electronics design engineers and manufacturers in Internet of Things (IoT) infrastructure worldwide.

AMPH vs SLAB — Head-to-Head

Bigger by revenue
SLAB
SLAB
1.1× larger
SLAB
$208.2M
$183.1M
AMPH
Growing faster (revenue YoY)
SLAB
SLAB
+27.1% gap
SLAB
25.2%
-1.8%
AMPH
More free cash flow
AMPH
AMPH
$26.2M more FCF
AMPH
$24.6M
$-1.6M
SLAB
Faster 2-yr revenue CAGR
SLAB
SLAB
Annualised
SLAB
39.9%
3.2%
AMPH

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMPH
AMPH
SLAB
SLAB
Revenue
$183.1M
$208.2M
Net Profit
$24.4M
Gross Margin
46.8%
63.4%
Operating Margin
19.4%
-1.6%
Net Margin
13.3%
Revenue YoY
-1.8%
25.2%
Net Profit YoY
-35.7%
EPS (diluted)
$0.51
$-0.07

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
SLAB
SLAB
Q1 26
$208.2M
Q4 25
$183.1M
$206.0M
Q3 25
$191.8M
$192.8M
Q2 25
$174.4M
$177.7M
Q1 25
$170.5M
Q4 24
$186.5M
$166.2M
Q3 24
$191.2M
$166.4M
Q2 24
$182.4M
$145.4M
Net Profit
AMPH
AMPH
SLAB
SLAB
Q1 26
Q4 25
$24.4M
$-9.9M
Q3 25
$17.4M
$-21.8M
Q2 25
$31.0M
Q1 25
$25.3M
Q4 24
$38.0M
Q3 24
$40.4M
$-28.5M
Q2 24
$37.9M
$-82.2M
Gross Margin
AMPH
AMPH
SLAB
SLAB
Q1 26
63.4%
Q4 25
46.8%
57.8%
Q3 25
51.4%
56.1%
Q2 25
49.6%
55.0%
Q1 25
50.0%
Q4 24
46.5%
54.3%
Q3 24
53.3%
54.3%
Q2 24
52.2%
52.7%
Operating Margin
AMPH
AMPH
SLAB
SLAB
Q1 26
-1.6%
Q4 25
19.4%
-6.0%
Q3 25
13.2%
-11.9%
Q2 25
24.2%
-18.1%
Q1 25
21.9%
Q4 24
24.2%
-17.2%
Q3 24
29.8%
-17.9%
Q2 24
30.3%
-33.0%
Net Margin
AMPH
AMPH
SLAB
SLAB
Q1 26
Q4 25
13.3%
-4.8%
Q3 25
9.0%
-11.3%
Q2 25
17.8%
Q1 25
14.8%
Q4 24
20.4%
Q3 24
21.1%
-17.1%
Q2 24
20.8%
-56.5%
EPS (diluted)
AMPH
AMPH
SLAB
SLAB
Q1 26
$-0.07
Q4 25
$0.51
$-0.30
Q3 25
$0.37
$-0.67
Q2 25
$0.64
$-0.94
Q1 25
$0.51
Q4 24
$0.74
$-0.72
Q3 24
$0.78
$-0.88
Q2 24
$0.73
$-2.56

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
SLAB
SLAB
Cash + ST InvestmentsLiquidity on hand
$282.8M
$443.6M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
$1.1B
Total Assets
$1.6B
$1.3B
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
SLAB
SLAB
Q1 26
$443.6M
Q4 25
$282.8M
$439.0M
Q3 25
$276.2M
$415.5M
Q2 25
$231.8M
$424.8M
Q1 25
$236.9M
Q4 24
$221.6M
$382.2M
Q3 24
$250.5M
$369.7M
Q2 24
$217.8M
$339.2M
Total Debt
AMPH
AMPH
SLAB
SLAB
Q1 26
Q4 25
$608.7M
Q3 25
$608.6M
Q2 25
$607.7M
Q1 25
$603.9M
Q4 24
$601.6M
Q3 24
$596.4M
Q2 24
$586.9M
Stockholders' Equity
AMPH
AMPH
SLAB
SLAB
Q1 26
$1.1B
Q4 25
$788.8M
$1.1B
Q3 25
$776.7M
$1.1B
Q2 25
$757.5M
$1.1B
Q1 25
$751.3M
Q4 24
$732.3M
$1.1B
Q3 24
$727.7M
$1.1B
Q2 24
$713.3M
$1.1B
Total Assets
AMPH
AMPH
SLAB
SLAB
Q1 26
$1.3B
Q4 25
$1.6B
$1.3B
Q3 25
$1.7B
$1.2B
Q2 25
$1.6B
$1.2B
Q1 25
$1.6B
Q4 24
$1.6B
$1.2B
Q3 24
$1.5B
$1.2B
Q2 24
$1.5B
$1.2B
Debt / Equity
AMPH
AMPH
SLAB
SLAB
Q1 26
Q4 25
0.77×
Q3 25
0.78×
Q2 25
0.80×
Q1 25
0.80×
Q4 24
0.82×
Q3 24
0.82×
Q2 24
0.82×

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
SLAB
SLAB
Operating Cash FlowLast quarter
$32.9M
$8.3M
Free Cash FlowOCF − Capex
$24.6M
$-1.6M
FCF MarginFCF / Revenue
13.4%
-0.8%
Capex IntensityCapex / Revenue
4.5%
4.8%
Cash ConversionOCF / Net Profit
1.35×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$65.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
SLAB
SLAB
Q1 26
$8.3M
Q4 25
$32.9M
$34.3M
Q3 25
$52.6M
$4.9M
Q2 25
$35.6M
$48.1M
Q1 25
$35.1M
Q4 24
$29.0M
$10.1M
Q3 24
$60.0M
$31.6M
Q2 24
$69.1M
$16.1M
Free Cash Flow
AMPH
AMPH
SLAB
SLAB
Q1 26
$-1.6M
Q4 25
$24.6M
$27.9M
Q3 25
$47.2M
$-3.8M
Q2 25
$25.0M
$43.3M
Q1 25
$24.4M
Q4 24
$16.6M
$6.2M
Q3 24
$46.2M
$29.4M
Q2 24
$63.1M
$12.6M
FCF Margin
AMPH
AMPH
SLAB
SLAB
Q1 26
-0.8%
Q4 25
13.4%
13.6%
Q3 25
24.6%
-2.0%
Q2 25
14.3%
24.4%
Q1 25
14.3%
Q4 24
8.9%
3.7%
Q3 24
24.1%
17.7%
Q2 24
34.6%
8.7%
Capex Intensity
AMPH
AMPH
SLAB
SLAB
Q1 26
4.8%
Q4 25
4.5%
3.1%
Q3 25
2.8%
4.5%
Q2 25
6.1%
2.7%
Q1 25
6.3%
Q4 24
6.7%
2.4%
Q3 24
7.2%
1.3%
Q2 24
3.3%
2.4%
Cash Conversion
AMPH
AMPH
SLAB
SLAB
Q1 26
Q4 25
1.35×
Q3 25
3.03×
Q2 25
1.15×
Q1 25
1.39×
Q4 24
0.76×
Q3 24
1.48×
Q2 24
1.82×

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%

SLAB
SLAB

Sales Channel Through Intermediary$157.5M76%
Sales Channel Directly To Consumer$50.7M24%

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