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Side-by-side financial comparison of Amphastar Pharmaceuticals, Inc. (AMPH) and NATIONAL PRESTO INDUSTRIES INC (NPK). Click either name above to swap in a different company.

Amphastar Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($183.1M vs $164.0M, roughly 1.1× NATIONAL PRESTO INDUSTRIES INC). On growth, NATIONAL PRESTO INDUSTRIES INC posted the faster year-over-year revenue change (21.7% vs -1.8%). Amphastar Pharmaceuticals, Inc. produced more free cash flow last quarter ($24.6M vs $12.4M). Over the past eight quarters, NATIONAL PRESTO INDUSTRIES INC's revenue compounded faster (46.3% 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.

National Presto Industries is a company founded in 1905 in Eau Claire, Wisconsin. Originally called "Northwestern Steel and Iron Works" the company changed its name to the "National Pressure Cooker Company" in 1929 and then National Presto Industries, Inc. 1953. The company originally produced pressure canners for commercial, and later home, use. Beginning in 1939, the company introduced small home-use cooking appliances. The company was admitted to the New York Stock Exchange on March 3, 1969.

AMPH vs NPK — Head-to-Head

Bigger by revenue
AMPH
AMPH
1.1× larger
AMPH
$183.1M
$164.0M
NPK
Growing faster (revenue YoY)
NPK
NPK
+23.6% gap
NPK
21.7%
-1.8%
AMPH
More free cash flow
AMPH
AMPH
$12.2M more FCF
AMPH
$24.6M
$12.4M
NPK
Faster 2-yr revenue CAGR
NPK
NPK
Annualised
NPK
46.3%
3.2%
AMPH

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMPH
AMPH
NPK
NPK
Revenue
$183.1M
$164.0M
Net Profit
$24.4M
Gross Margin
46.8%
16.9%
Operating Margin
19.4%
11.4%
Net Margin
13.3%
Revenue YoY
-1.8%
21.7%
Net Profit YoY
-35.7%
EPS (diluted)
$0.51

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
NPK
NPK
Q4 25
$183.1M
$164.0M
Q3 25
$191.8M
$115.5M
Q2 25
$174.4M
$120.4M
Q1 25
$170.5M
$103.6M
Q4 24
$186.5M
$134.7M
Q3 24
$191.2M
$91.8M
Q2 24
$182.4M
$85.1M
Q1 24
$171.8M
$76.7M
Net Profit
AMPH
AMPH
NPK
NPK
Q4 25
$24.4M
Q3 25
$17.4M
$5.3M
Q2 25
$31.0M
$5.2M
Q1 25
$25.3M
$7.6M
Q4 24
$38.0M
Q3 24
$40.4M
$8.1M
Q2 24
$37.9M
$6.1M
Q1 24
$43.2M
$6.6M
Gross Margin
AMPH
AMPH
NPK
NPK
Q4 25
46.8%
16.9%
Q3 25
51.4%
13.9%
Q2 25
49.6%
15.4%
Q1 25
50.0%
17.5%
Q4 24
46.5%
24.3%
Q3 24
53.3%
18.8%
Q2 24
52.2%
17.3%
Q1 24
52.4%
18.1%
Operating Margin
AMPH
AMPH
NPK
NPK
Q4 25
19.4%
11.4%
Q3 25
13.2%
5.6%
Q2 25
24.2%
5.1%
Q1 25
21.9%
8.8%
Q4 24
24.2%
17.3%
Q3 24
29.8%
10.0%
Q2 24
30.3%
7.5%
Q1 24
27.9%
8.2%
Net Margin
AMPH
AMPH
NPK
NPK
Q4 25
13.3%
Q3 25
9.0%
4.6%
Q2 25
17.8%
4.3%
Q1 25
14.8%
7.3%
Q4 24
20.4%
Q3 24
21.1%
8.8%
Q2 24
20.8%
7.1%
Q1 24
25.1%
8.6%
EPS (diluted)
AMPH
AMPH
NPK
NPK
Q4 25
$0.51
Q3 25
$0.37
Q2 25
$0.64
Q1 25
$0.51
Q4 24
$0.74
Q3 24
$0.78
Q2 24
$0.73
Q1 24
$0.81

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
NPK
NPK
Cash + ST InvestmentsLiquidity on hand
$282.8M
$3.8M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
$395.1M
Total Assets
$1.6B
$500.7M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
NPK
NPK
Q4 25
$282.8M
$3.8M
Q3 25
$276.2M
$4.6M
Q2 25
$231.8M
$4.8M
Q1 25
$236.9M
$5.5M
Q4 24
$221.6M
$22.7M
Q3 24
$250.5M
$33.2M
Q2 24
$217.8M
$53.4M
Q1 24
$289.6M
$87.9M
Total Debt
AMPH
AMPH
NPK
NPK
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
Q1 24
$594.0M
Stockholders' Equity
AMPH
AMPH
NPK
NPK
Q4 25
$788.8M
$395.1M
Q3 25
$776.7M
$379.8M
Q2 25
$757.5M
$374.1M
Q1 25
$751.3M
$368.6M
Q4 24
$732.3M
$367.6M
Q3 24
$727.7M
$346.6M
Q2 24
$713.3M
$338.1M
Q1 24
$672.4M
$331.6M
Total Assets
AMPH
AMPH
NPK
NPK
Q4 25
$1.6B
$500.7M
Q3 25
$1.7B
$503.8M
Q2 25
$1.6B
$471.9M
Q1 25
$1.6B
$455.3M
Q4 24
$1.6B
$453.4M
Q3 24
$1.5B
$428.9M
Q2 24
$1.5B
$418.1M
Q1 24
$1.6B
$417.5M
Debt / Equity
AMPH
AMPH
NPK
NPK
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×
Q1 24
0.88×

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
NPK
NPK
Operating Cash FlowLast quarter
$32.9M
$13.9M
Free Cash FlowOCF − Capex
$24.6M
$12.4M
FCF MarginFCF / Revenue
13.4%
7.6%
Capex IntensityCapex / Revenue
4.5%
0.9%
Cash ConversionOCF / Net Profit
1.35×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$-36.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
NPK
NPK
Q4 25
$32.9M
$13.9M
Q3 25
$52.6M
$-24.6M
Q2 25
$35.6M
$-10.9M
Q1 25
$35.1M
$12.5M
Q4 24
$29.0M
$-7.6M
Q3 24
$60.0M
$-17.5M
Q2 24
$69.1M
$-33.9M
Q1 24
$55.3M
$5.6M
Free Cash Flow
AMPH
AMPH
NPK
NPK
Q4 25
$24.6M
$12.4M
Q3 25
$47.2M
$-24.7M
Q2 25
$25.0M
$-13.4M
Q1 25
$24.4M
$-10.5M
Q4 24
$16.6M
$-11.3M
Q3 24
$46.2M
$-20.3M
Q2 24
$63.1M
$-34.5M
Q1 24
$46.5M
$5.2M
FCF Margin
AMPH
AMPH
NPK
NPK
Q4 25
13.4%
7.6%
Q3 25
24.6%
-21.4%
Q2 25
14.3%
-11.1%
Q1 25
14.3%
-10.2%
Q4 24
8.9%
-8.4%
Q3 24
24.1%
-22.1%
Q2 24
34.6%
-40.6%
Q1 24
27.1%
6.7%
Capex Intensity
AMPH
AMPH
NPK
NPK
Q4 25
4.5%
0.9%
Q3 25
2.8%
0.1%
Q2 25
6.1%
2.0%
Q1 25
6.3%
22.2%
Q4 24
6.7%
2.7%
Q3 24
7.2%
3.1%
Q2 24
3.3%
0.8%
Q1 24
5.1%
0.5%
Cash Conversion
AMPH
AMPH
NPK
NPK
Q4 25
1.35×
Q3 25
3.03×
-4.63×
Q2 25
1.15×
-2.12×
Q1 25
1.39×
1.64×
Q4 24
0.76×
Q3 24
1.48×
-2.16×
Q2 24
1.82×
-5.58×
Q1 24
1.28×
0.85×

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%

NPK
NPK

Segment breakdown not available.

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