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

Biogen is the larger business by last-quarter revenue ($2.3B vs $1.3B, roughly 1.8× Qnity Electronics, Inc.). Qnity Electronics, Inc. runs the higher net margin — 16.5% vs -2.1%, a 18.7% gap on every dollar of revenue. On growth, Qnity Electronics, Inc. posted the faster year-over-year revenue change (11.1% vs -7.1%). Qnity Electronics, Inc. produced more free cash flow last quarter ($568.0M vs $468.0M).

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 ...

BIIB vs Q — Head-to-Head

Bigger by revenue
BIIB
BIIB
1.8× larger
BIIB
$2.3B
$1.3B
Q
Growing faster (revenue YoY)
Q
Q
+18.3% gap
Q
11.1%
-7.1%
BIIB
Higher net margin
Q
Q
18.7% more per $
Q
16.5%
-2.1%
BIIB
More free cash flow
Q
Q
$100.0M more FCF
Q
$568.0M
$468.0M
BIIB

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
BIIB
BIIB
Q
Q
Revenue
$2.3B
$1.3B
Net Profit
$-48.9M
$211.0M
Gross Margin
78.3%
45.1%
Operating Margin
-2.5%
21.3%
Net Margin
-2.1%
16.5%
Revenue YoY
-7.1%
11.1%
Net Profit YoY
-118.3%
6.0%
EPS (diluted)
$-0.35
$1.01

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
Q
Q
Q4 25
$2.3B
Q3 25
$2.5B
$1.3B
Q2 25
$2.6B
Q1 25
$2.4B
Q4 24
$2.5B
Q3 24
$2.5B
$1.1B
Q2 24
$2.5B
Q1 24
$2.3B
Net Profit
BIIB
BIIB
Q
Q
Q4 25
$-48.9M
Q3 25
$466.5M
$211.0M
Q2 25
$634.8M
Q1 25
$240.5M
Q4 24
$266.7M
Q3 24
$388.5M
$199.0M
Q2 24
$583.6M
Q1 24
$393.4M
Gross Margin
BIIB
BIIB
Q
Q
Q4 25
78.3%
Q3 25
73.4%
45.1%
Q2 25
77.1%
Q1 25
74.1%
Q4 24
76.2%
Q3 24
74.1%
47.0%
Q2 24
77.8%
Q1 24
76.3%
Operating Margin
BIIB
BIIB
Q
Q
Q4 25
-2.5%
Q3 25
22.0%
21.3%
Q2 25
28.1%
Q1 25
12.8%
Q4 24
11.9%
Q3 24
18.3%
21.8%
Q2 24
28.3%
Q1 24
20.3%
Net Margin
BIIB
BIIB
Q
Q
Q4 25
-2.1%
Q3 25
18.4%
16.5%
Q2 25
24.0%
Q1 25
9.9%
Q4 24
10.9%
Q3 24
15.8%
17.3%
Q2 24
23.7%
Q1 24
17.2%
EPS (diluted)
BIIB
BIIB
Q
Q
Q4 25
$-0.35
Q3 25
$3.17
$1.01
Q2 25
$4.33
Q1 25
$1.64
Q4 24
$1.82
Q3 24
$2.66
$0.95
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
Q
Q
Cash + ST InvestmentsLiquidity on hand
$128.0M
Total DebtLower is stronger
$6.3B
$1.7B
Stockholders' EquityBook value
$18.3B
$9.1B
Total Assets
$29.4B
$12.5B
Debt / EquityLower = less leverage
0.34×
0.19×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
Q
Q
Q4 25
Q3 25
$128.0M
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Total Debt
BIIB
BIIB
Q
Q
Q4 25
$6.3B
Q3 25
$6.3B
$1.7B
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
Q
Q
Q4 25
$18.3B
Q3 25
$18.2B
$9.1B
Q2 25
$17.6B
Q1 25
$17.0B
Q4 24
$16.7B
Q3 24
$16.4B
$11.1B
Q2 24
$15.9B
Q1 24
$15.2B
Total Assets
BIIB
BIIB
Q
Q
Q4 25
$29.4B
Q3 25
$29.2B
$12.5B
Q2 25
$28.3B
Q1 25
$28.0B
Q4 24
$28.0B
Q3 24
$28.3B
Q2 24
$26.8B
Q1 24
$26.6B
Debt / Equity
BIIB
BIIB
Q
Q
Q4 25
0.34×
Q3 25
0.35×
0.19×
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
Q
Q
Operating Cash FlowLast quarter
$511.9M
$782.0M
Free Cash FlowOCF − Capex
$468.0M
$568.0M
FCF MarginFCF / Revenue
20.5%
44.5%
Capex IntensityCapex / Revenue
1.9%
16.8%
Cash ConversionOCF / Net Profit
3.71×
TTM Free Cash FlowTrailing 4 quarters
$2.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
Q
Q
Q4 25
$511.9M
Q3 25
$1.3B
$782.0M
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
Q
Q
Q4 25
$468.0M
Q3 25
$1.2B
$568.0M
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
Q
Q
Q4 25
20.5%
Q3 25
48.4%
44.5%
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
Q
Q
Q4 25
1.9%
Q3 25
1.8%
16.8%
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
Q
Q
Q4 25
Q3 25
2.73×
3.71×
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%

Q
Q

Semiconductor Technologies$693.0M54%
Interconnect Solutions$583.0M46%

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