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Side-by-side financial comparison of Biogen (BIIB) and JOYY Inc. (JOYY). Click either name above to swap in a different company.

Biogen is the larger business by last-quarter revenue ($2.3B vs $1.5B, roughly 1.5× JOYY Inc.). JOYY Inc. runs the higher net margin — 10.4% vs -2.1%, a 12.5% gap on every dollar of revenue. Over the past eight quarters, JOYY Inc.'s revenue compounded faster (16.8% CAGR vs -0.2%).

Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, United States specializing in the treatment of neurological diseases. The company's primary products are dimethyl fumarate (Tecfidera), diroximel fumarate (Vumerity), interferon beta-1a (AVONEX), peginterferon beta-1a (Plegridy), and natalizumab (Tysabri), all for the treatment of multiple sclerosis ; nusinersen (Spinraza) for the treatment of spinal muscular atrophy ; omaveloxolone (Skyclarys) for ...

JOYY Inc. is a global social media technology firm operating digital entertainment platforms including live streaming, short video and social services like Bigo Live and Likee. It serves users across Southeast Asia, Middle East, Latin America and other emerging markets, delivering interactive immersive digital content experiences for user groups.

BIIB vs JOYY — Head-to-Head

Bigger by revenue
BIIB
BIIB
1.5× larger
BIIB
$2.3B
$1.5B
JOYY
Higher net margin
JOYY
JOYY
12.5% more per $
JOYY
10.4%
-2.1%
BIIB
Faster 2-yr revenue CAGR
JOYY
JOYY
Annualised
JOYY
16.8%
-0.2%
BIIB

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
BIIB
BIIB
JOYY
JOYY
Revenue
$2.3B
$1.5B
Net Profit
$-48.9M
$160.1M
Gross Margin
78.3%
36.1%
Operating Margin
-2.5%
2.4%
Net Margin
-2.1%
10.4%
Revenue YoY
-7.1%
Net Profit YoY
-118.3%
EPS (diluted)
$-0.35

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
BIIB
BIIB
JOYY
JOYY
Q4 25
$2.3B
Q3 25
$2.5B
$1.5B
Q2 25
$2.6B
$1.0B
Q1 25
$2.4B
$494.4M
Q4 24
$2.5B
Q3 24
$2.5B
$1.7B
Q2 24
$2.5B
$1.1B
Q1 24
$2.3B
$564.6M
Net Profit
BIIB
BIIB
JOYY
JOYY
Q4 25
$-48.9M
Q3 25
$466.5M
$160.1M
Q2 25
$634.8M
$100.9M
Q1 25
$240.5M
$42.9M
Q4 24
$266.7M
Q3 24
$388.5M
$143.9M
Q2 24
$583.6M
$87.9M
Q1 24
$393.4M
$40.2M
Gross Margin
BIIB
BIIB
JOYY
JOYY
Q4 25
78.3%
Q3 25
73.4%
36.1%
Q2 25
77.1%
36.3%
Q1 25
74.1%
36.1%
Q4 24
76.2%
Q3 24
74.1%
35.7%
Q2 24
77.8%
34.9%
Q1 24
76.3%
34.6%
Operating Margin
BIIB
BIIB
JOYY
JOYY
Q4 25
-2.5%
Q3 25
22.0%
2.4%
Q2 25
28.1%
1.8%
Q1 25
12.8%
2.5%
Q4 24
11.9%
Q3 24
18.3%
1.3%
Q2 24
28.3%
0.5%
Q1 24
20.3%
0.6%
Net Margin
BIIB
BIIB
JOYY
JOYY
Q4 25
-2.1%
Q3 25
18.4%
10.4%
Q2 25
24.0%
10.1%
Q1 25
9.9%
8.7%
Q4 24
10.9%
Q3 24
15.8%
8.5%
Q2 24
23.7%
7.8%
Q1 24
17.2%
7.1%
EPS (diluted)
BIIB
BIIB
JOYY
JOYY
Q4 25
$-0.35
Q3 25
$3.17
Q2 25
$4.33
Q1 25
$1.64
Q4 24
$1.82
Q3 24
$2.66
Q2 24
$4.00
Q1 24
$2.70

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
JOYY
JOYY
Cash + ST InvestmentsLiquidity on hand
$383.8M
Total DebtLower is stronger
$6.3B
Stockholders' EquityBook value
$18.3B
$6.6B
Total Assets
$29.4B
$7.5B
Debt / EquityLower = less leverage
0.34×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
JOYY
JOYY
Q4 25
Q3 25
$383.8M
Q2 25
$401.0M
Q1 25
$801.5M
Q4 24
Q3 24
$481.8M
Q2 24
$607.1M
Q1 24
$728.2M
Total Debt
BIIB
BIIB
JOYY
JOYY
Q4 25
$6.3B
Q3 25
$6.3B
Q2 25
$6.3B
Q1 25
$4.5B
Q4 24
$6.3B
Q3 24
$4.5B
Q2 24
$6.3B
Q1 24
$6.3B
Stockholders' Equity
BIIB
BIIB
JOYY
JOYY
Q4 25
$18.3B
Q3 25
$18.2B
$6.6B
Q2 25
$17.6B
$6.6B
Q1 25
$17.0B
$6.6B
Q4 24
$16.7B
Q3 24
$16.4B
$5.3B
Q2 24
$15.9B
$5.3B
Q1 24
$15.2B
$5.3B
Total Assets
BIIB
BIIB
JOYY
JOYY
Q4 25
$29.4B
Q3 25
$29.2B
$7.5B
Q2 25
$28.3B
$7.5B
Q1 25
$28.0B
$7.6B
Q4 24
$28.0B
Q3 24
$28.3B
$8.1B
Q2 24
$26.8B
$8.1B
Q1 24
$26.6B
$8.6B
Debt / Equity
BIIB
BIIB
JOYY
JOYY
Q4 25
0.34×
Q3 25
0.35×
Q2 25
0.36×
Q1 25
0.27×
Q4 24
0.38×
Q3 24
0.28×
Q2 24
0.40×
Q1 24
0.41×

Cash Flow & Capital Efficiency

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

Metric
BIIB
BIIB
JOYY
JOYY
Operating Cash FlowLast quarter
$511.9M
Free Cash FlowOCF − Capex
$468.0M
FCF MarginFCF / Revenue
20.5%
Capex IntensityCapex / Revenue
1.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$2.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
JOYY
JOYY
Q4 25
$511.9M
Q3 25
$1.3B
Q2 25
$160.9M
Q1 25
$259.3M
Q4 24
$760.9M
Q3 24
$935.6M
Q2 24
$625.8M
Q1 24
$553.2M
Free Cash Flow
BIIB
BIIB
JOYY
JOYY
Q4 25
$468.0M
Q3 25
$1.2B
Q2 25
$134.3M
Q1 25
$222.2M
Q4 24
$721.6M
Q3 24
$900.6M
Q2 24
$592.3M
Q1 24
$507.3M
FCF Margin
BIIB
BIIB
JOYY
JOYY
Q4 25
20.5%
Q3 25
48.4%
Q2 25
5.1%
Q1 25
9.1%
Q4 24
29.4%
Q3 24
36.5%
Q2 24
24.0%
Q1 24
22.1%
Capex Intensity
BIIB
BIIB
JOYY
JOYY
Q4 25
1.9%
Q3 25
1.8%
Q2 25
1.0%
Q1 25
1.5%
Q4 24
1.6%
Q3 24
1.4%
Q2 24
1.4%
Q1 24
2.0%
Cash Conversion
BIIB
BIIB
JOYY
JOYY
Q4 25
Q3 25
2.73×
Q2 25
0.25×
Q1 25
1.08×
Q4 24
2.85×
Q3 24
2.41×
Q2 24
1.07×
Q1 24
1.41×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BIIB
BIIB

Products$1.7B73%
Tysabri Product$244.5M11%
AVONEX$119.2M5%
SKYCLARYS$88.9M4%
Alzheimers Collaboration$47.1M2%
IMRALDI$43.5M2%
TECFIDERA$36.9M2%
PLEGRIDY$24.7M1%
QALSODY$7.8M0%
BYOOVIZ$4.3M0%

JOYY
JOYY

Live streaming$1.1B74%
Advertising$297.3M19%
Others$109.8M7%

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