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

Wingstop Inc. is the larger business by last-quarter revenue ($183.7M vs $183.1M, roughly 1.0× Amphastar Pharmaceuticals, Inc.). Wingstop Inc. runs the higher net margin — 16.3% vs 13.3%, a 2.9% gap on every dollar of revenue. On growth, Wingstop Inc. posted the faster year-over-year revenue change (7.4% vs -1.8%). Over the past eight quarters, Wingstop Inc.'s revenue compounded faster (8.6% 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.

Wingstop Inc. is an American international fast food chain that primarily sells buffalo wings. Wingstop locations are decorated with a 1930s and 1940s pre-jet aviation theme.

AMPH vs WING — Head-to-Head

Bigger by revenue
WING
WING
1.0× larger
WING
$183.7M
$183.1M
AMPH
Growing faster (revenue YoY)
WING
WING
+9.2% gap
WING
7.4%
-1.8%
AMPH
Higher net margin
WING
WING
2.9% more per $
WING
16.3%
13.3%
AMPH
Faster 2-yr revenue CAGR
WING
WING
Annualised
WING
8.6%
3.2%
AMPH

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMPH
AMPH
WING
WING
Revenue
$183.1M
$183.7M
Net Profit
$24.4M
$29.9M
Gross Margin
46.8%
86.5%
Operating Margin
19.4%
27.4%
Net Margin
13.3%
16.3%
Revenue YoY
-1.8%
7.4%
Net Profit YoY
-35.7%
EPS (diluted)
$0.51
$1.08

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
WING
WING
Q1 26
$183.7M
Q4 25
$183.1M
$175.7M
Q3 25
$191.8M
$175.7M
Q2 25
$174.4M
$174.3M
Q1 25
$170.5M
$171.1M
Q4 24
$186.5M
$161.8M
Q3 24
$191.2M
$162.5M
Q2 24
$182.4M
$155.7M
Net Profit
AMPH
AMPH
WING
WING
Q1 26
$29.9M
Q4 25
$24.4M
$26.8M
Q3 25
$17.4M
$28.5M
Q2 25
$31.0M
$26.8M
Q1 25
$25.3M
$92.3M
Q4 24
$38.0M
$26.8M
Q3 24
$40.4M
$25.7M
Q2 24
$37.9M
$27.5M
Gross Margin
AMPH
AMPH
WING
WING
Q1 26
86.5%
Q4 25
46.8%
Q3 25
51.4%
Q2 25
49.6%
Q1 25
50.0%
Q4 24
46.5%
85.6%
Q3 24
53.3%
85.0%
Q2 24
52.2%
85.4%
Operating Margin
AMPH
AMPH
WING
WING
Q1 26
27.4%
Q4 25
19.4%
26.7%
Q3 25
13.2%
27.9%
Q2 25
24.2%
25.9%
Q1 25
21.9%
22.4%
Q4 24
24.2%
25.9%
Q3 24
29.8%
24.5%
Q2 24
30.3%
26.5%
Net Margin
AMPH
AMPH
WING
WING
Q1 26
16.3%
Q4 25
13.3%
15.2%
Q3 25
9.0%
16.2%
Q2 25
17.8%
15.4%
Q1 25
14.8%
53.9%
Q4 24
20.4%
16.5%
Q3 24
21.1%
15.8%
Q2 24
20.8%
17.7%
EPS (diluted)
AMPH
AMPH
WING
WING
Q1 26
$1.08
Q4 25
$0.51
$0.99
Q3 25
$0.37
$1.02
Q2 25
$0.64
$0.96
Q1 25
$0.51
$3.24
Q4 24
$0.74
$0.91
Q3 24
$0.78
$0.88
Q2 24
$0.73
$0.93

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
WING
WING
Cash + ST InvestmentsLiquidity on hand
$282.8M
$128.8M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
Total Assets
$1.6B
$648.9M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
WING
WING
Q1 26
$128.8M
Q4 25
$282.8M
$196.6M
Q3 25
$276.2M
$237.6M
Q2 25
$231.8M
$227.9M
Q1 25
$236.9M
$251.4M
Q4 24
$221.6M
$315.9M
Q3 24
$250.5M
$84.0M
Q2 24
$217.8M
$96.7M
Total Debt
AMPH
AMPH
WING
WING
Q1 26
Q4 25
$608.7M
$1.2B
Q3 25
$608.6M
Q2 25
$607.7M
Q1 25
$603.9M
Q4 24
$601.6M
$1.2B
Q3 24
$596.4M
Q2 24
$586.9M
Stockholders' Equity
AMPH
AMPH
WING
WING
Q1 26
Q4 25
$788.8M
$-736.8M
Q3 25
$776.7M
$-702.6M
Q2 25
$757.5M
$-686.0M
Q1 25
$751.3M
$-715.0M
Q4 24
$732.3M
$-675.6M
Q3 24
$727.7M
$-447.5M
Q2 24
$713.3M
$-437.5M
Total Assets
AMPH
AMPH
WING
WING
Q1 26
$648.9M
Q4 25
$1.6B
$693.4M
Q3 25
$1.7B
$721.0M
Q2 25
$1.6B
$708.3M
Q1 25
$1.6B
$696.8M
Q4 24
$1.6B
$716.2M
Q3 24
$1.5B
$484.8M
Q2 24
$1.5B
$451.8M
Debt / Equity
AMPH
AMPH
WING
WING
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
WING
WING
Operating Cash FlowLast quarter
$32.9M
Free Cash FlowOCF − Capex
$24.6M
FCF MarginFCF / Revenue
13.4%
Capex IntensityCapex / Revenue
4.5%
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
WING
WING
Q1 26
Q4 25
$32.9M
$57.3M
Q3 25
$52.6M
$63.9M
Q2 25
$35.6M
$6.6M
Q1 25
$35.1M
$25.3M
Q4 24
$29.0M
$7.7M
Q3 24
$60.0M
$69.0M
Q2 24
$69.1M
$36.2M
Free Cash Flow
AMPH
AMPH
WING
WING
Q1 26
Q4 25
$24.6M
$34.5M
Q3 25
$47.2M
$61.7M
Q2 25
$25.0M
$-7.8M
Q1 25
$24.4M
$17.3M
Q4 24
$16.6M
$-8.6M
Q3 24
$46.2M
$54.9M
Q2 24
$63.1M
$25.9M
FCF Margin
AMPH
AMPH
WING
WING
Q1 26
Q4 25
13.4%
19.6%
Q3 25
24.6%
35.1%
Q2 25
14.3%
-4.5%
Q1 25
14.3%
10.1%
Q4 24
8.9%
-5.3%
Q3 24
24.1%
33.8%
Q2 24
34.6%
16.6%
Capex Intensity
AMPH
AMPH
WING
WING
Q1 26
Q4 25
4.5%
13.0%
Q3 25
2.8%
1.3%
Q2 25
6.1%
8.2%
Q1 25
6.3%
4.7%
Q4 24
6.7%
10.1%
Q3 24
7.2%
8.7%
Q2 24
3.3%
6.6%
Cash Conversion
AMPH
AMPH
WING
WING
Q1 26
Q4 25
1.35×
2.14×
Q3 25
3.03×
2.24×
Q2 25
1.15×
0.25×
Q1 25
1.39×
0.27×
Q4 24
0.76×
0.29×
Q3 24
1.48×
2.68×
Q2 24
1.82×
1.32×

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%

WING
WING

Royalty revenue, franchise fees and other$87.5M48%
Advertising fees$63.3M34%
Company-owned restaurant sales$33.0M18%

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