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

SONIC AUTOMOTIVE INC is the larger business by last-quarter revenue ($3.7B vs $2.5B, roughly 1.5× Biogen). Biogen runs the higher net margin — 12.9% vs 1.6%, a 11.2% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (2.0% vs 1.0%). Over the past eight quarters, SONIC AUTOMOTIVE INC's revenue compounded faster (3.4% CAGR vs 0.3%).

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 ...

Sonic Automotive is a Fortune 500 company based in Charlotte, North Carolina, and is the fifth largest automotive retailer in the United States as measured by total revenues. The company was founded by O Bruton Smith and completed its initial public offering on the NYSE in 1997.

BIIB vs SAH — Head-to-Head

Bigger by revenue
SAH
SAH
1.5× larger
SAH
$3.7B
$2.5B
BIIB
Growing faster (revenue YoY)
BIIB
BIIB
+1.0% gap
BIIB
2.0%
1.0%
SAH
Higher net margin
BIIB
BIIB
11.2% more per $
BIIB
12.9%
1.6%
SAH
Faster 2-yr revenue CAGR
SAH
SAH
Annualised
SAH
3.4%
0.3%
BIIB

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
BIIB
BIIB
SAH
SAH
Revenue
$2.5B
$3.7B
Net Profit
$319.5M
$60.8M
Gross Margin
16.2%
Operating Margin
3.1%
Net Margin
12.9%
1.6%
Revenue YoY
2.0%
1.0%
Net Profit YoY
32.8%
EPS (diluted)
$2.15
$1.79

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
SAH
SAH
Q1 26
$2.5B
$3.7B
Q4 25
$2.3B
$3.9B
Q3 25
$2.5B
$4.0B
Q2 25
$2.6B
$3.7B
Q1 25
$2.4B
$3.7B
Q4 24
$2.5B
$3.9B
Q3 24
$2.5B
$3.5B
Q2 24
$2.5B
$3.5B
Net Profit
BIIB
BIIB
SAH
SAH
Q1 26
$319.5M
$60.8M
Q4 25
$-48.9M
$46.9M
Q3 25
$466.5M
$46.8M
Q2 25
$634.8M
$-45.6M
Q1 25
$240.5M
$70.6M
Q4 24
$266.7M
$58.6M
Q3 24
$388.5M
$74.2M
Q2 24
$583.6M
$41.2M
Gross Margin
BIIB
BIIB
SAH
SAH
Q1 26
16.2%
Q4 25
78.3%
15.5%
Q3 25
73.4%
15.5%
Q2 25
77.1%
16.5%
Q1 25
74.1%
15.5%
Q4 24
76.2%
14.7%
Q3 24
74.1%
15.6%
Q2 24
77.8%
15.6%
Operating Margin
BIIB
BIIB
SAH
SAH
Q1 26
3.1%
Q4 25
-2.5%
3.2%
Q3 25
22.0%
3.1%
Q2 25
28.1%
-0.6%
Q1 25
12.8%
4.0%
Q4 24
11.9%
3.4%
Q3 24
18.3%
3.3%
Q2 24
28.3%
3.1%
Net Margin
BIIB
BIIB
SAH
SAH
Q1 26
12.9%
1.6%
Q4 25
-2.1%
1.2%
Q3 25
18.4%
1.2%
Q2 25
24.0%
-1.2%
Q1 25
9.9%
1.9%
Q4 24
10.9%
1.5%
Q3 24
15.8%
2.1%
Q2 24
23.7%
1.2%
EPS (diluted)
BIIB
BIIB
SAH
SAH
Q1 26
$2.15
$1.79
Q4 25
$-0.35
$1.39
Q3 25
$3.17
$1.33
Q2 25
$4.33
$-1.34
Q1 25
$1.64
$2.04
Q4 24
$1.82
$1.67
Q3 24
$2.66
$2.13
Q2 24
$4.00
$1.18

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
SAH
SAH
Cash + ST InvestmentsLiquidity on hand
$3.4B
Total DebtLower is stronger
Stockholders' EquityBook value
$18.7B
Total Assets
$29.5B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
SAH
SAH
Q1 26
$3.4B
Q4 25
$6.3M
Q3 25
$89.4M
Q2 25
$110.4M
Q1 25
$64.6M
Q4 24
$44.0M
Q3 24
$17.6M
Q2 24
$67.2M
Total Debt
BIIB
BIIB
SAH
SAH
Q1 26
Q4 25
$6.3B
$1.6B
Q3 25
$6.3B
$1.5B
Q2 25
$6.3B
$1.5B
Q1 25
$4.5B
$1.6B
Q4 24
$6.3B
$1.6B
Q3 24
$4.5B
$1.7B
Q2 24
$6.3B
$1.7B
Stockholders' Equity
BIIB
BIIB
SAH
SAH
Q1 26
$18.7B
Q4 25
$18.3B
$1.1B
Q3 25
$18.2B
$1.1B
Q2 25
$17.6B
$1.0B
Q1 25
$17.0B
$1.1B
Q4 24
$16.7B
$1.1B
Q3 24
$16.4B
$1.0B
Q2 24
$15.9B
$944.7M
Total Assets
BIIB
BIIB
SAH
SAH
Q1 26
$29.5B
Q4 25
$29.4B
$6.0B
Q3 25
$29.2B
$6.0B
Q2 25
$28.3B
$5.9B
Q1 25
$28.0B
$5.9B
Q4 24
$28.0B
$5.9B
Q3 24
$28.3B
$5.8B
Q2 24
$26.8B
$5.8B
Debt / Equity
BIIB
BIIB
SAH
SAH
Q1 26
Q4 25
0.34×
1.51×
Q3 25
0.35×
1.39×
Q2 25
0.36×
1.48×
Q1 25
0.27×
1.44×
Q4 24
0.38×
1.49×
Q3 24
0.28×
1.67×
Q2 24
0.40×
1.81×

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
SAH
SAH
Operating Cash FlowLast quarter
Free Cash FlowOCF − Capex
$594.3M
FCF MarginFCF / Revenue
24.0%
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$2.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
SAH
SAH
Q1 26
Q4 25
$511.9M
$66.9M
Q3 25
$1.3B
$167.9M
Q2 25
$160.9M
$136.8M
Q1 25
$259.3M
$195.8M
Q4 24
$760.9M
$87.7M
Q3 24
$935.6M
$87.8M
Q2 24
$625.8M
$-136.4M
Free Cash Flow
BIIB
BIIB
SAH
SAH
Q1 26
$594.3M
Q4 25
$468.0M
$-195.6M
Q3 25
$1.2B
$134.4M
Q2 25
$134.3M
$102.7M
Q1 25
$222.2M
$150.8M
Q4 24
$721.6M
$-245.5M
Q3 24
$900.6M
$34.5M
Q2 24
$592.3M
$-185.2M
FCF Margin
BIIB
BIIB
SAH
SAH
Q1 26
24.0%
Q4 25
20.5%
-5.1%
Q3 25
48.4%
3.4%
Q2 25
5.1%
2.8%
Q1 25
9.1%
4.1%
Q4 24
29.4%
-6.3%
Q3 24
36.5%
1.0%
Q2 24
24.0%
-5.4%
Capex Intensity
BIIB
BIIB
SAH
SAH
Q1 26
Q4 25
1.9%
6.8%
Q3 25
1.8%
0.8%
Q2 25
1.0%
0.9%
Q1 25
1.5%
1.2%
Q4 24
1.6%
8.6%
Q3 24
1.4%
1.5%
Q2 24
1.4%
1.4%
Cash Conversion
BIIB
BIIB
SAH
SAH
Q1 26
Q4 25
1.43×
Q3 25
2.73×
3.59×
Q2 25
0.25×
Q1 25
1.08×
2.77×
Q4 24
2.85×
1.50×
Q3 24
2.41×
1.18×
Q2 24
1.07×
-3.31×

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%

SAH
SAH

Retail new vehicles$1.6B44%
Used vehicles$1.3B34%
Parts, service and collision repair$516.6M14%
Finance, insurance and other, net$202.4M5%
Wholesale vehicles$71.8M2%
Fleet new vehicles$20.7M1%

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