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

Amphastar Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($183.1M vs $111.7M, roughly 1.6× ZIPRECRUITER, INC.). Amphastar Pharmaceuticals, Inc. runs the higher net margin — 13.3% vs -0.7%, a 14.1% gap on every dollar of revenue. On growth, ZIPRECRUITER, INC. posted the faster year-over-year revenue change (0.6% vs -1.8%). Amphastar Pharmaceuticals, Inc. produced more free cash flow last quarter ($24.6M vs $7.6M). Over the past eight quarters, Amphastar Pharmaceuticals, Inc.'s revenue compounded faster (3.2% CAGR vs -4.4%).

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.

AMPH vs ZIP — Head-to-Head

Bigger by revenue
AMPH
AMPH
1.6× larger
AMPH
$183.1M
$111.7M
ZIP
Growing faster (revenue YoY)
ZIP
ZIP
+2.4% gap
ZIP
0.6%
-1.8%
AMPH
Higher net margin
AMPH
AMPH
14.1% more per $
AMPH
13.3%
-0.7%
ZIP
More free cash flow
AMPH
AMPH
$17.0M more FCF
AMPH
$24.6M
$7.6M
ZIP
Faster 2-yr revenue CAGR
AMPH
AMPH
Annualised
AMPH
3.2%
-4.4%
ZIP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMPH
AMPH
ZIP
ZIP
Revenue
$183.1M
$111.7M
Net Profit
$24.4M
$-835.0K
Gross Margin
46.8%
89.1%
Operating Margin
19.4%
3.6%
Net Margin
13.3%
-0.7%
Revenue YoY
-1.8%
0.6%
Net Profit YoY
-35.7%
92.3%
EPS (diluted)
$0.51
$-0.03

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
ZIP
ZIP
Q4 25
$183.1M
$111.7M
Q3 25
$191.8M
$115.0M
Q2 25
$174.4M
$112.2M
Q1 25
$170.5M
$110.1M
Q4 24
$186.5M
$111.0M
Q3 24
$191.2M
$117.1M
Q2 24
$182.4M
$123.7M
Q1 24
$171.8M
$122.2M
Net Profit
AMPH
AMPH
ZIP
ZIP
Q4 25
$24.4M
$-835.0K
Q3 25
$17.4M
$-9.8M
Q2 25
$31.0M
$-9.5M
Q1 25
$25.3M
$-12.8M
Q4 24
$38.0M
$-10.8M
Q3 24
$40.4M
$-2.6M
Q2 24
$37.9M
$7.0M
Q1 24
$43.2M
$-6.5M
Gross Margin
AMPH
AMPH
ZIP
ZIP
Q4 25
46.8%
89.1%
Q3 25
51.4%
89.1%
Q2 25
49.6%
89.3%
Q1 25
50.0%
89.4%
Q4 24
46.5%
89.6%
Q3 24
53.3%
89.4%
Q2 24
52.2%
89.5%
Q1 24
52.4%
89.1%
Operating Margin
AMPH
AMPH
ZIP
ZIP
Q4 25
19.4%
3.6%
Q3 25
13.2%
-4.4%
Q2 25
24.2%
-5.9%
Q1 25
21.9%
-10.6%
Q4 24
24.2%
-3.6%
Q3 24
29.8%
-2.8%
Q2 24
30.3%
7.6%
Q1 24
27.9%
-0.7%
Net Margin
AMPH
AMPH
ZIP
ZIP
Q4 25
13.3%
-0.7%
Q3 25
9.0%
-8.5%
Q2 25
17.8%
-8.5%
Q1 25
14.8%
-11.7%
Q4 24
20.4%
-9.7%
Q3 24
21.1%
-2.2%
Q2 24
20.8%
5.7%
Q1 24
25.1%
-5.3%
EPS (diluted)
AMPH
AMPH
ZIP
ZIP
Q4 25
$0.51
$-0.03
Q3 25
$0.37
$-0.11
Q2 25
$0.64
$-0.10
Q1 25
$0.51
$-0.13
Q4 24
$0.74
$-0.10
Q3 24
$0.78
$-0.03
Q2 24
$0.73
$0.07
Q1 24
$0.81
$-0.07

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
ZIP
ZIP
Cash + ST InvestmentsLiquidity on hand
$282.8M
$188.0M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
$-77.2M
Total Assets
$1.6B
$569.7M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
ZIP
ZIP
Q4 25
$282.8M
$188.0M
Q3 25
$276.2M
$211.8M
Q2 25
$231.8M
$203.5M
Q1 25
$236.9M
$221.1M
Q4 24
$221.6M
$218.4M
Q3 24
$250.5M
$225.6M
Q2 24
$217.8M
$271.7M
Q1 24
$289.6M
$282.5M
Total Debt
AMPH
AMPH
ZIP
ZIP
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
ZIP
ZIP
Q4 25
$788.8M
$-77.2M
Q3 25
$776.7M
$-76.1M
Q2 25
$757.5M
$-65.9M
Q1 25
$751.3M
$-11.3M
Q4 24
$732.3M
$13.4M
Q3 24
$727.7M
$13.6M
Q2 24
$713.3M
$24.4M
Q1 24
$672.4M
$12.7M
Total Assets
AMPH
AMPH
ZIP
ZIP
Q4 25
$1.6B
$569.7M
Q3 25
$1.7B
$573.6M
Q2 25
$1.6B
$592.4M
Q1 25
$1.6B
$629.4M
Q4 24
$1.6B
$664.1M
Q3 24
$1.5B
$652.0M
Q2 24
$1.5B
$665.3M
Q1 24
$1.6B
$662.4M
Debt / Equity
AMPH
AMPH
ZIP
ZIP
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
ZIP
ZIP
Operating Cash FlowLast quarter
$32.9M
$7.7M
Free Cash FlowOCF − Capex
$24.6M
$7.6M
FCF MarginFCF / Revenue
13.4%
6.8%
Capex IntensityCapex / Revenue
4.5%
0.1%
Cash ConversionOCF / Net Profit
1.35×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$9.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
ZIP
ZIP
Q4 25
$32.9M
$7.7M
Q3 25
$52.6M
$2.6M
Q2 25
$35.6M
$10.5M
Q1 25
$35.1M
$-9.9M
Q4 24
$29.0M
$12.5M
Q3 24
$60.0M
$9.3M
Q2 24
$69.1M
$21.9M
Q1 24
$55.3M
$2.0M
Free Cash Flow
AMPH
AMPH
ZIP
ZIP
Q4 25
$24.6M
$7.6M
Q3 25
$47.2M
$2.2M
Q2 25
$25.0M
$10.2M
Q1 25
$24.4M
$-10.2M
Q4 24
$16.6M
$12.0M
Q3 24
$46.2M
$9.2M
Q2 24
$63.1M
$21.7M
Q1 24
$46.5M
$1.9M
FCF Margin
AMPH
AMPH
ZIP
ZIP
Q4 25
13.4%
6.8%
Q3 25
24.6%
1.9%
Q2 25
14.3%
9.1%
Q1 25
14.3%
-9.3%
Q4 24
8.9%
10.8%
Q3 24
24.1%
7.8%
Q2 24
34.6%
17.6%
Q1 24
27.1%
1.6%
Capex Intensity
AMPH
AMPH
ZIP
ZIP
Q4 25
4.5%
0.1%
Q3 25
2.8%
0.3%
Q2 25
6.1%
0.3%
Q1 25
6.3%
0.3%
Q4 24
6.7%
0.4%
Q3 24
7.2%
0.2%
Q2 24
3.3%
0.1%
Q1 24
5.1%
0.1%
Cash Conversion
AMPH
AMPH
ZIP
ZIP
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×
3.12×
Q1 24
1.28×

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%

ZIP
ZIP

License$84.3M75%
Services$27.4M25%

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