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

MIAMI INTERNATIONAL HOLDINGS, INC. is the larger business by last-quarter revenue ($339.8M vs $183.1M, roughly 1.9× Amphastar Pharmaceuticals, Inc.). Amphastar Pharmaceuticals, Inc. runs the higher net margin — 13.3% vs -30.0%, a 43.4% gap on every dollar of revenue. On growth, MIAMI INTERNATIONAL HOLDINGS, INC. posted the faster year-over-year revenue change (22.8% vs -1.8%). MIAMI INTERNATIONAL HOLDINGS, INC. produced more free cash flow last quarter ($102.2M vs $24.6M).

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.

Miami Air International was an American charter airline based in Miami-Dade County, Florida, United States. It operated worldwide passenger charter flights for diverse groups including cruise operators, professional sports teams and the United States military. It was based at Miami International Airport. Miami Air's customers included incentive groups, sports teams, Fortune 500 companies, major cruise lines, entertainers, political candidates and the United States government. Under the Civil ...

AMPH vs MIAX — Head-to-Head

Bigger by revenue
MIAX
MIAX
1.9× larger
MIAX
$339.8M
$183.1M
AMPH
Growing faster (revenue YoY)
MIAX
MIAX
+24.6% gap
MIAX
22.8%
-1.8%
AMPH
Higher net margin
AMPH
AMPH
43.4% more per $
AMPH
13.3%
-30.0%
MIAX
More free cash flow
MIAX
MIAX
$77.6M more FCF
MIAX
$102.2M
$24.6M
AMPH

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
AMPH
AMPH
MIAX
MIAX
Revenue
$183.1M
$339.8M
Net Profit
$24.4M
$-102.1M
Gross Margin
46.8%
32.2%
Operating Margin
19.4%
-0.1%
Net Margin
13.3%
-30.0%
Revenue YoY
-1.8%
22.8%
Net Profit YoY
-35.7%
-3086.0%
EPS (diluted)
$0.51
$-1.46

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
MIAX
MIAX
Q4 25
$183.1M
Q3 25
$191.8M
$339.8M
Q2 25
$174.4M
Q1 25
$170.5M
Q4 24
$186.5M
Q3 24
$191.2M
$276.7M
Q2 24
$182.4M
Q1 24
$171.8M
Net Profit
AMPH
AMPH
MIAX
MIAX
Q4 25
$24.4M
Q3 25
$17.4M
$-102.1M
Q2 25
$31.0M
Q1 25
$25.3M
Q4 24
$38.0M
Q3 24
$40.4M
$-3.2M
Q2 24
$37.9M
Q1 24
$43.2M
Gross Margin
AMPH
AMPH
MIAX
MIAX
Q4 25
46.8%
Q3 25
51.4%
32.2%
Q2 25
49.6%
Q1 25
50.0%
Q4 24
46.5%
Q3 24
53.3%
25.1%
Q2 24
52.2%
Q1 24
52.4%
Operating Margin
AMPH
AMPH
MIAX
MIAX
Q4 25
19.4%
Q3 25
13.2%
-0.1%
Q2 25
24.2%
Q1 25
21.9%
Q4 24
24.2%
Q3 24
29.8%
-0.4%
Q2 24
30.3%
Q1 24
27.9%
Net Margin
AMPH
AMPH
MIAX
MIAX
Q4 25
13.3%
Q3 25
9.0%
-30.0%
Q2 25
17.8%
Q1 25
14.8%
Q4 24
20.4%
Q3 24
21.1%
-1.2%
Q2 24
20.8%
Q1 24
25.1%
EPS (diluted)
AMPH
AMPH
MIAX
MIAX
Q4 25
$0.51
Q3 25
$0.37
$-1.46
Q2 25
$0.64
Q1 25
$0.51
Q4 24
$0.74
Q3 24
$0.78
$-0.05
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
MIAX
MIAX
Cash + ST InvestmentsLiquidity on hand
$282.8M
$401.5M
Total DebtLower is stronger
$608.7M
$6.5M
Stockholders' EquityBook value
$788.8M
$831.9M
Total Assets
$1.6B
$1.2B
Debt / EquityLower = less leverage
0.77×
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
MIAX
MIAX
Q4 25
$282.8M
Q3 25
$276.2M
$401.5M
Q2 25
$231.8M
Q1 25
$236.9M
Q4 24
$221.6M
Q3 24
$250.5M
$125.1M
Q2 24
$217.8M
Q1 24
$289.6M
Total Debt
AMPH
AMPH
MIAX
MIAX
Q4 25
$608.7M
Q3 25
$608.6M
$6.5M
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
MIAX
MIAX
Q4 25
$788.8M
Q3 25
$776.7M
$831.9M
Q2 25
$757.5M
Q1 25
$751.3M
Q4 24
$732.3M
Q3 24
$727.7M
$351.4M
Q2 24
$713.3M
Q1 24
$672.4M
Total Assets
AMPH
AMPH
MIAX
MIAX
Q4 25
$1.6B
Q3 25
$1.7B
$1.2B
Q2 25
$1.6B
Q1 25
$1.6B
Q4 24
$1.6B
Q3 24
$1.5B
Q2 24
$1.5B
Q1 24
$1.6B
Debt / Equity
AMPH
AMPH
MIAX
MIAX
Q4 25
0.77×
Q3 25
0.78×
0.01×
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
MIAX
MIAX
Operating Cash FlowLast quarter
$32.9M
$120.8M
Free Cash FlowOCF − Capex
$24.6M
$102.2M
FCF MarginFCF / Revenue
13.4%
30.1%
Capex IntensityCapex / Revenue
4.5%
5.5%
Cash ConversionOCF / Net Profit
1.35×
TTM Free Cash FlowTrailing 4 quarters
$121.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
MIAX
MIAX
Q4 25
$32.9M
Q3 25
$52.6M
$120.8M
Q2 25
$35.6M
Q1 25
$35.1M
Q4 24
$29.0M
Q3 24
$60.0M
Q2 24
$69.1M
Q1 24
$55.3M
Free Cash Flow
AMPH
AMPH
MIAX
MIAX
Q4 25
$24.6M
Q3 25
$47.2M
$102.2M
Q2 25
$25.0M
Q1 25
$24.4M
Q4 24
$16.6M
Q3 24
$46.2M
Q2 24
$63.1M
Q1 24
$46.5M
FCF Margin
AMPH
AMPH
MIAX
MIAX
Q4 25
13.4%
Q3 25
24.6%
30.1%
Q2 25
14.3%
Q1 25
14.3%
Q4 24
8.9%
Q3 24
24.1%
Q2 24
34.6%
Q1 24
27.1%
Capex Intensity
AMPH
AMPH
MIAX
MIAX
Q4 25
4.5%
Q3 25
2.8%
5.5%
Q2 25
6.1%
Q1 25
6.3%
Q4 24
6.7%
Q3 24
7.2%
Q2 24
3.3%
Q1 24
5.1%
Cash Conversion
AMPH
AMPH
MIAX
MIAX
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×
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%

MIAX
MIAX

Transferred At Point In Time$246.7M73%
Transferred Over Time$29.9M9%
Access Fees$27.1M8%
Futures Segment$19.4M6%
Other$9.1M3%
TISEG$4.7M1%

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