vs

Side-by-side financial comparison of Amphastar Pharmaceuticals, Inc. (AMPH) and Blue Bird Corp (BLBD). Click either name above to swap in a different company.

Blue Bird Corp is the larger business by last-quarter revenue ($333.1M vs $183.1M, roughly 1.8× Amphastar Pharmaceuticals, Inc.). Amphastar Pharmaceuticals, Inc. runs the higher net margin — 13.3% vs 9.2%, a 4.1% gap on every dollar of revenue. On growth, Blue Bird Corp posted the faster year-over-year revenue change (6.1% vs -1.8%). Blue Bird Corp produced more free cash flow last quarter ($31.1M vs $24.6M). Over the past eight quarters, Amphastar Pharmaceuticals, Inc.'s revenue compounded faster (3.2% CAGR vs -1.9%).

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.

The Blue Bird Corporation is an American bus manufacturer. Headquartered in Fort Valley, Georgia, the company was best known for its production of school buses. The company has also manufactured a wide variety of other bus types, including transit buses, motorhomes, and specialty vehicles such as mobile libraries and mobile police command centers.

AMPH vs BLBD — Head-to-Head

Bigger by revenue
BLBD
BLBD
1.8× larger
BLBD
$333.1M
$183.1M
AMPH
Growing faster (revenue YoY)
BLBD
BLBD
+8.0% gap
BLBD
6.1%
-1.8%
AMPH
Higher net margin
AMPH
AMPH
4.1% more per $
AMPH
13.3%
9.2%
BLBD
More free cash flow
BLBD
BLBD
$6.5M more FCF
BLBD
$31.1M
$24.6M
AMPH
Faster 2-yr revenue CAGR
AMPH
AMPH
Annualised
AMPH
3.2%
-1.9%
BLBD

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMPH
AMPH
BLBD
BLBD
Revenue
$183.1M
$333.1M
Net Profit
$24.4M
$30.8M
Gross Margin
46.8%
21.4%
Operating Margin
19.4%
11.3%
Net Margin
13.3%
9.2%
Revenue YoY
-1.8%
6.1%
Net Profit YoY
-35.7%
7.1%
EPS (diluted)
$0.51
$0.94

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
BLBD
BLBD
Q4 25
$183.1M
$333.1M
Q3 25
$191.8M
$409.4M
Q2 25
$174.4M
$398.0M
Q1 25
$170.5M
$358.9M
Q4 24
$186.5M
$313.9M
Q3 24
$191.2M
$350.2M
Q2 24
$182.4M
$333.4M
Q1 24
$171.8M
$345.9M
Net Profit
AMPH
AMPH
BLBD
BLBD
Q4 25
$24.4M
$30.8M
Q3 25
$17.4M
$36.5M
Q2 25
$31.0M
$36.5M
Q1 25
$25.3M
$26.0M
Q4 24
$38.0M
$28.7M
Q3 24
$40.4M
$24.7M
Q2 24
$37.9M
$28.7M
Q1 24
$43.2M
$26.0M
Gross Margin
AMPH
AMPH
BLBD
BLBD
Q4 25
46.8%
21.4%
Q3 25
51.4%
21.1%
Q2 25
49.6%
21.6%
Q1 25
50.0%
19.7%
Q4 24
46.5%
19.2%
Q3 24
53.3%
17.0%
Q2 24
52.2%
20.8%
Q1 24
52.4%
18.4%
Operating Margin
AMPH
AMPH
BLBD
BLBD
Q4 25
19.4%
11.3%
Q3 25
13.2%
12.3%
Q2 25
24.2%
12.6%
Q1 25
21.9%
9.4%
Q4 24
24.2%
10.5%
Q3 24
29.8%
7.3%
Q2 24
30.3%
11.9%
Q1 24
27.9%
10.4%
Net Margin
AMPH
AMPH
BLBD
BLBD
Q4 25
13.3%
9.2%
Q3 25
9.0%
8.9%
Q2 25
17.8%
9.2%
Q1 25
14.8%
7.3%
Q4 24
20.4%
9.2%
Q3 24
21.1%
7.0%
Q2 24
20.8%
8.6%
Q1 24
25.1%
7.5%
EPS (diluted)
AMPH
AMPH
BLBD
BLBD
Q4 25
$0.51
$0.94
Q3 25
$0.37
$1.11
Q2 25
$0.64
$1.12
Q1 25
$0.51
$0.79
Q4 24
$0.74
$0.86
Q3 24
$0.78
$0.71
Q2 24
$0.73
$0.85
Q1 24
$0.81
$0.79

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
BLBD
BLBD
Cash + ST InvestmentsLiquidity on hand
$282.8M
$241.7M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
$271.4M
Total Assets
$1.6B
$642.3M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
BLBD
BLBD
Q4 25
$282.8M
$241.7M
Q3 25
$276.2M
$229.3M
Q2 25
$231.8M
$173.1M
Q1 25
$236.9M
$130.7M
Q4 24
$221.6M
$136.1M
Q3 24
$250.5M
$127.7M
Q2 24
$217.8M
$88.4M
Q1 24
$289.6M
$93.1M
Total Debt
AMPH
AMPH
BLBD
BLBD
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
BLBD
BLBD
Q4 25
$788.8M
$271.4M
Q3 25
$776.7M
$255.4M
Q2 25
$757.5M
$221.8M
Q1 25
$751.3M
$190.4M
Q4 24
$732.3M
$179.7M
Q3 24
$727.7M
$159.6M
Q2 24
$713.3M
$137.3M
Q1 24
$672.4M
$105.8M
Total Assets
AMPH
AMPH
BLBD
BLBD
Q4 25
$1.6B
$642.3M
Q3 25
$1.7B
$625.3M
Q2 25
$1.6B
$575.5M
Q1 25
$1.6B
$543.7M
Q4 24
$1.6B
$535.2M
Q3 24
$1.5B
$524.9M
Q2 24
$1.5B
$468.1M
Q1 24
$1.6B
$456.5M
Debt / Equity
AMPH
AMPH
BLBD
BLBD
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
BLBD
BLBD
Operating Cash FlowLast quarter
$32.9M
$36.6M
Free Cash FlowOCF − Capex
$24.6M
$31.1M
FCF MarginFCF / Revenue
13.4%
9.3%
Capex IntensityCapex / Revenue
4.5%
1.6%
Cash ConversionOCF / Net Profit
1.35×
1.19×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$162.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
BLBD
BLBD
Q4 25
$32.9M
$36.6M
Q3 25
$52.6M
$65.1M
Q2 25
$35.6M
$56.9M
Q1 25
$35.1M
$27.8M
Q4 24
$29.0M
$26.4M
Q3 24
$60.0M
$55.4M
Q2 24
$69.1M
$989.0K
Q1 24
$55.3M
$54.6M
Free Cash Flow
AMPH
AMPH
BLBD
BLBD
Q4 25
$24.6M
$31.1M
Q3 25
$47.2M
$60.5M
Q2 25
$25.0M
$52.3M
Q1 25
$24.4M
$18.7M
Q4 24
$16.6M
$21.8M
Q3 24
$46.2M
$50.2M
Q2 24
$63.1M
$-3.5M
Q1 24
$46.5M
$51.8M
FCF Margin
AMPH
AMPH
BLBD
BLBD
Q4 25
13.4%
9.3%
Q3 25
24.6%
14.8%
Q2 25
14.3%
13.1%
Q1 25
14.3%
5.2%
Q4 24
8.9%
7.0%
Q3 24
24.1%
14.3%
Q2 24
34.6%
-1.1%
Q1 24
27.1%
15.0%
Capex Intensity
AMPH
AMPH
BLBD
BLBD
Q4 25
4.5%
1.6%
Q3 25
2.8%
1.1%
Q2 25
6.1%
1.2%
Q1 25
6.3%
2.5%
Q4 24
6.7%
1.5%
Q3 24
7.2%
1.5%
Q2 24
3.3%
1.3%
Q1 24
5.1%
0.8%
Cash Conversion
AMPH
AMPH
BLBD
BLBD
Q4 25
1.35×
1.19×
Q3 25
3.03×
1.78×
Q2 25
1.15×
1.56×
Q1 25
1.39×
1.07×
Q4 24
0.76×
0.92×
Q3 24
1.48×
2.24×
Q2 24
1.82×
0.03×
Q1 24
1.28×
2.10×

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%

BLBD
BLBD

Alternative Fuel Buses$151.4M45%
Diesel Buses$144.9M43%
Parts$24.8M7%
Other$12.1M4%

Related Comparisons