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

BORGWARNER INC is the larger business by last-quarter revenue ($3.5B vs $2.5B, roughly 1.4× Biogen). Biogen runs the higher net margin — 12.9% vs 7.2%, a 5.7% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (2.0% vs 0.5%). Biogen produced more free cash flow last quarter ($594.3M vs $13.0M). Over the past eight quarters, Biogen's revenue compounded faster (0.3% CAGR vs -1.0%).

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 ...

BorgWarner Inc. is an American automotive and e-mobility supplier headquartered in Auburn Hills, Michigan. As of 2023, the company maintains production facilities and sites at 92 locations in 24 countries, and generates revenues of US$14.2 billion, while employing around 39,900 people. The company is one of the 25 largest automotive suppliers in the world. Since February 2025, Joseph F. Fadool has been CEO of BorgWarner Inc.

BIIB vs BWA — Head-to-Head

Bigger by revenue
BWA
BWA
1.4× larger
BWA
$3.5B
$2.5B
BIIB
Growing faster (revenue YoY)
BIIB
BIIB
+1.5% gap
BIIB
2.0%
0.5%
BWA
Higher net margin
BIIB
BIIB
5.7% more per $
BIIB
12.9%
7.2%
BWA
More free cash flow
BIIB
BIIB
$581.3M more FCF
BIIB
$594.3M
$13.0M
BWA
Faster 2-yr revenue CAGR
BIIB
BIIB
Annualised
BIIB
0.3%
-1.0%
BWA

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
BIIB
BIIB
BWA
BWA
Revenue
$2.5B
$3.5B
Net Profit
$319.5M
$255.0M
Gross Margin
19.2%
Operating Margin
9.5%
Net Margin
12.9%
7.2%
Revenue YoY
2.0%
0.5%
Net Profit YoY
32.8%
54.1%
EPS (diluted)
$2.15
$1.16

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
BWA
BWA
Q1 26
$2.5B
$3.5B
Q4 25
$2.3B
$3.6B
Q3 25
$2.5B
$3.6B
Q2 25
$2.6B
$3.6B
Q1 25
$2.4B
$3.5B
Q4 24
$2.5B
$3.4B
Q3 24
$2.5B
$3.4B
Q2 24
$2.5B
$3.6B
Net Profit
BIIB
BIIB
BWA
BWA
Q1 26
$319.5M
$255.0M
Q4 25
$-48.9M
$-262.0M
Q3 25
$466.5M
$158.0M
Q2 25
$634.8M
$224.0M
Q1 25
$240.5M
$157.0M
Q4 24
$266.7M
$-405.0M
Q3 24
$388.5M
$234.0M
Q2 24
$583.6M
$303.0M
Gross Margin
BIIB
BIIB
BWA
BWA
Q1 26
19.2%
Q4 25
78.3%
20.5%
Q3 25
73.4%
18.5%
Q2 25
77.1%
17.6%
Q1 25
74.1%
18.2%
Q4 24
76.2%
19.9%
Q3 24
74.1%
18.4%
Q2 24
77.8%
19.0%
Operating Margin
BIIB
BIIB
BWA
BWA
Q1 26
9.5%
Q4 25
-2.5%
-6.7%
Q3 25
22.0%
6.9%
Q2 25
28.1%
7.9%
Q1 25
12.8%
6.7%
Q4 24
11.9%
-9.2%
Q3 24
18.3%
7.8%
Q2 24
28.3%
8.2%
Net Margin
BIIB
BIIB
BWA
BWA
Q1 26
12.9%
7.2%
Q4 25
-2.1%
-7.3%
Q3 25
18.4%
4.4%
Q2 25
24.0%
6.2%
Q1 25
9.9%
4.5%
Q4 24
10.9%
-11.8%
Q3 24
15.8%
6.8%
Q2 24
23.7%
8.4%
EPS (diluted)
BIIB
BIIB
BWA
BWA
Q1 26
$2.15
$1.16
Q4 25
$-0.35
$-1.20
Q3 25
$3.17
$0.73
Q2 25
$4.33
$1.03
Q1 25
$1.64
$0.72
Q4 24
$1.82
$-1.78
Q3 24
$2.66
$1.04
Q2 24
$4.00
$1.34

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
BWA
BWA
Cash + ST InvestmentsLiquidity on hand
$3.4B
$2.1B
Total DebtLower is stronger
$3.9B
Stockholders' EquityBook value
$18.7B
$5.6B
Total Assets
$29.5B
$13.7B
Debt / EquityLower = less leverage
0.69×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
BWA
BWA
Q1 26
$3.4B
$2.1B
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Total Debt
BIIB
BIIB
BWA
BWA
Q1 26
$3.9B
Q4 25
$6.3B
$3.9B
Q3 25
$6.3B
$3.9B
Q2 25
$6.3B
$3.9B
Q1 25
$4.5B
$3.8B
Q4 24
$6.3B
$3.8B
Q3 24
$4.5B
$4.2B
Q2 24
$6.3B
$3.3B
Stockholders' Equity
BIIB
BIIB
BWA
BWA
Q1 26
$18.7B
$5.6B
Q4 25
$18.3B
$5.4B
Q3 25
$18.2B
$6.0B
Q2 25
$17.6B
$5.9B
Q1 25
$17.0B
$5.7B
Q4 24
$16.7B
$5.5B
Q3 24
$16.4B
$6.2B
Q2 24
$15.9B
$6.1B
Total Assets
BIIB
BIIB
BWA
BWA
Q1 26
$29.5B
$13.7B
Q4 25
$29.4B
$13.8B
Q3 25
$29.2B
$14.5B
Q2 25
$28.3B
$14.4B
Q1 25
$28.0B
$13.8B
Q4 24
$28.0B
$14.0B
Q3 24
$28.3B
$15.1B
Q2 24
$26.8B
$14.1B
Debt / Equity
BIIB
BIIB
BWA
BWA
Q1 26
0.69×
Q4 25
0.34×
0.72×
Q3 25
0.35×
0.65×
Q2 25
0.36×
0.66×
Q1 25
0.27×
0.66×
Q4 24
0.38×
0.68×
Q3 24
0.28×
0.68×
Q2 24
0.40×
0.54×

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
BWA
BWA
Operating Cash FlowLast quarter
$152.0M
Free Cash FlowOCF − Capex
$594.3M
$13.0M
FCF MarginFCF / Revenue
24.0%
0.4%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
0.60×
TTM Free Cash FlowTrailing 4 quarters
$2.4B
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
BWA
BWA
Q1 26
$152.0M
Q4 25
$511.9M
$619.0M
Q3 25
$1.3B
$368.0M
Q2 25
$160.9M
$579.0M
Q1 25
$259.3M
$82.0M
Q4 24
$760.9M
$682.0M
Q3 24
$935.6M
$356.0M
Q2 24
$625.8M
$462.0M
Free Cash Flow
BIIB
BIIB
BWA
BWA
Q1 26
$594.3M
$13.0M
Q4 25
$468.0M
$457.0M
Q3 25
$1.2B
$257.0M
Q2 25
$134.3M
$502.0M
Q1 25
$222.2M
$-37.0M
Q4 24
$721.6M
$521.0M
Q3 24
$900.6M
$201.0M
Q2 24
$592.3M
$297.0M
FCF Margin
BIIB
BIIB
BWA
BWA
Q1 26
24.0%
0.4%
Q4 25
20.5%
12.8%
Q3 25
48.4%
7.2%
Q2 25
5.1%
13.8%
Q1 25
9.1%
-1.1%
Q4 24
29.4%
15.1%
Q3 24
36.5%
5.8%
Q2 24
24.0%
8.2%
Capex Intensity
BIIB
BIIB
BWA
BWA
Q1 26
4.0%
Q4 25
1.9%
4.5%
Q3 25
1.8%
3.1%
Q2 25
1.0%
2.1%
Q1 25
1.5%
3.4%
Q4 24
1.6%
4.7%
Q3 24
1.4%
4.5%
Q2 24
1.4%
4.6%
Cash Conversion
BIIB
BIIB
BWA
BWA
Q1 26
0.60×
Q4 25
Q3 25
2.73×
2.33×
Q2 25
0.25×
2.58×
Q1 25
1.08×
0.52×
Q4 24
2.85×
Q3 24
2.41×
1.52×
Q2 24
1.07×
1.52×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BIIB
BIIB

Product revenue, net$1.8B71%
Royalty revenue on sales of OCREVUS$317.2M13%
Contract manufacturing, royalty and other revenue$246.9M10%
Biogen's share of pre-tax profits in the U.S. for RITUXAN, GAZYVA and LUNSUMIO$94.7M4%
Alzheimer's collaboration Revenue$59.5M2%
Other revenue from anti-CD20 therapeutic programs$7.2M0%

BWA
BWA

Turbos & Thermal Technologies$1.4B41%
Drivetrain & Morse Systems$1.4B40%
PowerDrive Systems$587.0M17%
Battery Energy Systems$102.0M3%

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