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

Amphastar Pharmaceuticals, Inc. is the larger business by last-quarter revenue ($183.1M vs $147.1M, roughly 1.2× Leslie's, Inc.). Amphastar Pharmaceuticals, Inc. runs the higher net margin — 13.3% vs -56.4%, a 69.7% gap on every dollar of revenue. On growth, Amphastar Pharmaceuticals, Inc. posted the faster year-over-year revenue change (-1.8% vs -16.0%). Amphastar Pharmaceuticals, Inc. produced more free cash flow last quarter ($24.6M vs $-85.5M). Over the past eight quarters, Amphastar Pharmaceuticals, Inc.'s revenue compounded faster (3.2% CAGR vs -11.7%).

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.

Leslie's, Inc., operating as Leslie's Swimming Pool Supplies, is the largest retailer of swimming pool supplies and related products. The company is headquartered in Phoenix, Arizona, and has a particularly strong retail presence in Arizona, California, Florida, Georgia and Texas.

AMPH vs LESL — Head-to-Head

Bigger by revenue
AMPH
AMPH
1.2× larger
AMPH
$183.1M
$147.1M
LESL
Growing faster (revenue YoY)
AMPH
AMPH
+14.2% gap
AMPH
-1.8%
-16.0%
LESL
Higher net margin
AMPH
AMPH
69.7% more per $
AMPH
13.3%
-56.4%
LESL
More free cash flow
AMPH
AMPH
$110.1M more FCF
AMPH
$24.6M
$-85.5M
LESL
Faster 2-yr revenue CAGR
AMPH
AMPH
Annualised
AMPH
3.2%
-11.7%
LESL

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMPH
AMPH
LESL
LESL
Revenue
$183.1M
$147.1M
Net Profit
$24.4M
$-83.0M
Gross Margin
46.8%
18.4%
Operating Margin
19.4%
-46.7%
Net Margin
13.3%
-56.4%
Revenue YoY
-1.8%
-16.0%
Net Profit YoY
-35.7%
-86.2%
EPS (diluted)
$0.51
$-8.92

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
LESL
LESL
Q1 26
$147.1M
Q4 25
$183.1M
$389.2M
Q3 25
$191.8M
Q2 25
$174.4M
$500.3M
Q1 25
$170.5M
$177.1M
Q4 24
$186.5M
$175.2M
Q3 24
$191.2M
$397.9M
Q2 24
$182.4M
$569.6M
Net Profit
AMPH
AMPH
LESL
LESL
Q1 26
$-83.0M
Q4 25
$24.4M
$-162.8M
Q3 25
$17.4M
Q2 25
$31.0M
$21.7M
Q1 25
$25.3M
$-51.3M
Q4 24
$38.0M
$-44.6M
Q3 24
$40.4M
$-9.9M
Q2 24
$37.9M
$60.6M
Gross Margin
AMPH
AMPH
LESL
LESL
Q1 26
18.4%
Q4 25
46.8%
38.6%
Q3 25
51.4%
Q2 25
49.6%
39.6%
Q1 25
50.0%
24.8%
Q4 24
46.5%
27.2%
Q3 24
53.3%
36.0%
Q2 24
52.2%
40.2%
Operating Margin
AMPH
AMPH
LESL
LESL
Q1 26
-46.7%
Q4 25
19.4%
-38.6%
Q3 25
13.2%
Q2 25
24.2%
13.7%
Q1 25
21.9%
-27.3%
Q4 24
24.2%
-22.7%
Q3 24
29.8%
6.6%
Q2 24
30.3%
17.2%
Net Margin
AMPH
AMPH
LESL
LESL
Q1 26
-56.4%
Q4 25
13.3%
-41.8%
Q3 25
9.0%
Q2 25
17.8%
4.3%
Q1 25
14.8%
-29.0%
Q4 24
20.4%
-25.4%
Q3 24
21.1%
-2.5%
Q2 24
20.8%
10.6%
EPS (diluted)
AMPH
AMPH
LESL
LESL
Q1 26
$-8.92
Q4 25
$0.51
$-20.59
Q3 25
$0.37
Q2 25
$0.64
$0.12
Q1 25
$0.51
$-0.28
Q4 24
$0.74
$-4.82
Q3 24
$0.78
$-2.46
Q2 24
$0.73
$0.33

Balance Sheet & Financial Strength

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

Metric
AMPH
AMPH
LESL
LESL
Cash + ST InvestmentsLiquidity on hand
$282.8M
$3.6M
Total DebtLower is stronger
$608.7M
$781.6M
Stockholders' EquityBook value
$788.8M
$-489.9M
Total Assets
$1.6B
$649.4M
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
LESL
LESL
Q1 26
$3.6M
Q4 25
$282.8M
$64.3M
Q3 25
$276.2M
Q2 25
$231.8M
$42.7M
Q1 25
$236.9M
$17.3M
Q4 24
$221.6M
$11.6M
Q3 24
$250.5M
$108.5M
Q2 24
$217.8M
$74.4M
Total Debt
AMPH
AMPH
LESL
LESL
Q1 26
$781.6M
Q4 25
$608.7M
$756.6M
Q3 25
$608.6M
Q2 25
$607.7M
$776.6M
Q1 25
$603.9M
$858.1M
Q4 24
$601.6M
$796.6M
Q3 24
$596.4M
$783.7M
Q2 24
$586.9M
$783.7M
Stockholders' Equity
AMPH
AMPH
LESL
LESL
Q1 26
$-489.9M
Q4 25
$788.8M
$-408.0M
Q3 25
$776.7M
Q2 25
$757.5M
$-246.2M
Q1 25
$751.3M
$-269.5M
Q4 24
$732.3M
$-220.0M
Q3 24
$727.7M
$-177.1M
Q2 24
$713.3M
$-168.2M
Total Assets
AMPH
AMPH
LESL
LESL
Q1 26
$649.4M
Q4 25
$1.6B
$741.5M
Q3 25
$1.7B
Q2 25
$1.6B
$989.5M
Q1 25
$1.6B
$1.0B
Q4 24
$1.6B
$967.0M
Q3 24
$1.5B
$1.1B
Q2 24
$1.5B
$1.1B
Debt / Equity
AMPH
AMPH
LESL
LESL
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
LESL
LESL
Operating Cash FlowLast quarter
$32.9M
$-81.1M
Free Cash FlowOCF − Capex
$24.6M
$-85.5M
FCF MarginFCF / Revenue
13.4%
-58.1%
Capex IntensityCapex / Revenue
4.5%
2.9%
Cash ConversionOCF / Net Profit
1.35×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$7.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
LESL
LESL
Q1 26
$-81.1M
Q4 25
$32.9M
$48.2M
Q3 25
$52.6M
Q2 25
$35.6M
$114.9M
Q1 25
$35.1M
$-49.2M
Q4 24
$29.0M
$-105.1M
Q3 24
$60.0M
$47.1M
Q2 24
$69.1M
$175.5M
Free Cash Flow
AMPH
AMPH
LESL
LESL
Q1 26
$-85.5M
Q4 25
$24.6M
$41.8M
Q3 25
$47.2M
Q2 25
$25.0M
$107.1M
Q1 25
$24.4M
$-55.8M
Q4 24
$16.6M
$-109.8M
Q3 24
$46.2M
$34.1M
Q2 24
$63.1M
$165.2M
FCF Margin
AMPH
AMPH
LESL
LESL
Q1 26
-58.1%
Q4 25
13.4%
10.7%
Q3 25
24.6%
Q2 25
14.3%
21.4%
Q1 25
14.3%
-31.5%
Q4 24
8.9%
-62.6%
Q3 24
24.1%
8.6%
Q2 24
34.6%
29.0%
Capex Intensity
AMPH
AMPH
LESL
LESL
Q1 26
2.9%
Q4 25
4.5%
1.7%
Q3 25
2.8%
Q2 25
6.1%
1.6%
Q1 25
6.3%
3.7%
Q4 24
6.7%
2.7%
Q3 24
7.2%
3.2%
Q2 24
3.3%
1.8%
Cash Conversion
AMPH
AMPH
LESL
LESL
Q1 26
Q4 25
1.35×
Q3 25
3.03×
Q2 25
1.15×
5.29×
Q1 25
1.39×
Q4 24
0.76×
Q3 24
1.48×
Q2 24
1.82×
2.89×

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%

LESL
LESL

Segment breakdown not available.

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