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Side-by-side financial comparison of ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) and Esperion Therapeutics, Inc. (ESPR). Click either name above to swap in a different company.

Esperion Therapeutics, Inc. is the larger business by last-quarter revenue ($168.4M vs $162.3M, roughly 1.0× ALPHA & OMEGA SEMICONDUCTOR Ltd). On growth, Esperion Therapeutics, Inc. posted the faster year-over-year revenue change (143.7% vs -6.3%). Over the past eight quarters, Esperion Therapeutics, Inc.'s revenue compounded faster (10.6% CAGR vs 4.0%).

Alpha & Omega Semiconductor Ltd designs, manufactures and markets a broad portfolio of power semiconductors, including power MOSFETs, IGBTs, analog ICs and power management modules. Its products are applied across consumer electronics, industrial equipment, automotive systems, telecom and computing segments, with sales networks covering major global markets.

Esperion Therapeutics, Inc. is a publicly traded American pharmaceutical company focused on the development of bempedoic acid, an orally available small molecule designed to lower elevated levels of LDL-C. The company is headquartered in Ann Arbor, Michigan.

AOSL vs ESPR — Head-to-Head

Bigger by revenue
ESPR
ESPR
1.0× larger
ESPR
$168.4M
$162.3M
AOSL
Growing faster (revenue YoY)
ESPR
ESPR
+150.0% gap
ESPR
143.7%
-6.3%
AOSL
Faster 2-yr revenue CAGR
ESPR
ESPR
Annualised
ESPR
10.6%
4.0%
AOSL

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
AOSL
AOSL
ESPR
ESPR
Revenue
$162.3M
$168.4M
Net Profit
$-13.3M
Gross Margin
21.5%
Operating Margin
-8.4%
50.6%
Net Margin
-8.2%
Revenue YoY
-6.3%
143.7%
Net Profit YoY
-101.0%
EPS (diluted)
$-0.45
$0.32

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
AOSL
AOSL
ESPR
ESPR
Q4 25
$162.3M
$168.4M
Q3 25
$182.5M
$87.3M
Q2 25
$176.5M
$82.4M
Q1 25
$164.6M
$65.0M
Q4 24
$173.2M
$69.1M
Q3 24
$181.9M
$51.6M
Q2 24
$161.3M
$73.8M
Q1 24
$150.1M
$137.7M
Net Profit
AOSL
AOSL
ESPR
ESPR
Q4 25
$-13.3M
Q3 25
$-2.1M
$-31.3M
Q2 25
$-77.1M
$-12.7M
Q1 25
$-10.8M
$-40.5M
Q4 24
$-6.6M
Q3 24
$-2.5M
$-29.5M
Q2 24
$-2.7M
$-61.9M
Q1 24
$-11.2M
$61.0M
Gross Margin
AOSL
AOSL
ESPR
ESPR
Q4 25
21.5%
Q3 25
23.5%
Q2 25
23.4%
Q1 25
21.4%
Q4 24
23.1%
Q3 24
24.5%
Q2 24
25.7%
Q1 24
23.7%
Operating Margin
AOSL
AOSL
ESPR
ESPR
Q4 25
-8.4%
50.6%
Q3 25
-2.5%
-11.4%
Q2 25
-6.6%
8.6%
Q1 25
-6.5%
-34.0%
Q4 24
-3.4%
-6.4%
Q3 24
-0.1%
-31.0%
Q2 24
-0.9%
3.5%
Q1 24
-7.0%
52.5%
Net Margin
AOSL
AOSL
ESPR
ESPR
Q4 25
-8.2%
Q3 25
-1.2%
-35.9%
Q2 25
-43.7%
-15.4%
Q1 25
-6.6%
-62.2%
Q4 24
-3.8%
Q3 24
-1.4%
-57.2%
Q2 24
-1.7%
-83.9%
Q1 24
-7.5%
44.3%
EPS (diluted)
AOSL
AOSL
ESPR
ESPR
Q4 25
$-0.45
$0.32
Q3 25
$-0.07
$-0.16
Q2 25
$-2.61
$-0.06
Q1 25
$-0.37
$-0.21
Q4 24
$-0.23
$-0.14
Q3 24
$-0.09
$-0.15
Q2 24
$-0.09
$-0.33
Q1 24
$-0.39
$0.34

Balance Sheet & Financial Strength

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

Metric
AOSL
AOSL
ESPR
ESPR
Cash + ST InvestmentsLiquidity on hand
$196.3M
$167.9M
Total DebtLower is stronger
Stockholders' EquityBook value
$818.8M
$-302.0M
Total Assets
$1.0B
$465.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AOSL
AOSL
ESPR
ESPR
Q4 25
$196.3M
$167.9M
Q3 25
$223.5M
$92.4M
Q2 25
$153.1M
$86.1M
Q1 25
$169.4M
$114.6M
Q4 24
$182.6M
$144.8M
Q3 24
$176.0M
$144.7M
Q2 24
$175.1M
$189.3M
Q1 24
$174.4M
$226.6M
Total Debt
AOSL
AOSL
ESPR
ESPR
Q4 25
Q3 25
Q2 25
$14.9M
Q1 25
Q4 24
Q3 24
Q2 24
$26.7M
Q1 24
Stockholders' Equity
AOSL
AOSL
ESPR
ESPR
Q4 25
$818.8M
$-302.0M
Q3 25
$834.1M
$-451.4M
Q2 25
$822.3M
$-433.5M
Q1 25
$886.3M
$-426.2M
Q4 24
$902.6M
$-388.7M
Q3 24
$895.3M
$-370.2M
Q2 24
$891.6M
$-344.2M
Q1 24
$888.9M
$-294.3M
Total Assets
AOSL
AOSL
ESPR
ESPR
Q4 25
$1.0B
$465.9M
Q3 25
$1.0B
$364.0M
Q2 25
$1.0B
$347.1M
Q1 25
$1.1B
$324.0M
Q4 24
$1.1B
$343.8M
Q3 24
$1.1B
$314.1M
Q2 24
$1.1B
$352.3M
Q1 24
$1.2B
$373.1M
Debt / Equity
AOSL
AOSL
ESPR
ESPR
Q4 25
Q3 25
Q2 25
0.02×
Q1 25
Q4 24
Q3 24
Q2 24
0.03×
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AOSL
AOSL
ESPR
ESPR
Operating Cash FlowLast quarter
$-8.1M
$45.2M
Free Cash FlowOCF − Capex
$-23.1M
FCF MarginFCF / Revenue
-14.2%
Capex IntensityCapex / Revenue
9.2%
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-40.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AOSL
AOSL
ESPR
ESPR
Q4 25
$-8.1M
$45.2M
Q3 25
$10.2M
$-4.3M
Q2 25
$-2.8M
$-31.4M
Q1 25
$7.4M
$-22.6M
Q4 24
$14.1M
$-35.0M
Q3 24
$11.0M
$-35.3M
Q2 24
$7.1M
$-7.2M
Q1 24
$28.2M
$53.8M
Free Cash Flow
AOSL
AOSL
ESPR
ESPR
Q4 25
$-23.1M
Q3 25
$420.0K
Q2 25
$-17.2M
Q1 25
$-1.1M
Q4 24
$6.6M
Q3 24
$4.1M
$-35.5M
Q2 24
$-210.0K
$-7.3M
Q1 24
$20.5M
$53.8M
FCF Margin
AOSL
AOSL
ESPR
ESPR
Q4 25
-14.2%
Q3 25
0.2%
Q2 25
-9.7%
Q1 25
-0.6%
Q4 24
3.8%
Q3 24
2.3%
-68.7%
Q2 24
-0.1%
-9.9%
Q1 24
13.7%
39.0%
Capex Intensity
AOSL
AOSL
ESPR
ESPR
Q4 25
9.2%
0.0%
Q3 25
5.4%
0.0%
Q2 25
8.1%
0.0%
Q1 25
5.1%
0.0%
Q4 24
4.3%
0.0%
Q3 24
3.8%
0.3%
Q2 24
4.5%
0.1%
Q1 24
5.2%
0.1%
Cash Conversion
AOSL
AOSL
ESPR
ESPR
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
0.88×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AOSL
AOSL

Power Discrete$101.0M62%
Power Ic$58.8M36%
Packaging And Testing Services$2.5M2%

ESPR
ESPR

Collaboration Revenue$124.7M74%
Products$43.7M26%

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