vs

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

Delek US Holdings, Inc. is the larger business by last-quarter revenue ($2.6B vs $2.5B, roughly 1.1× Biogen). Biogen runs the higher net margin — 12.9% vs -7.7%, a 20.5% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (2.0% vs 0.4%). Over the past eight quarters, Biogen's revenue compounded faster (0.3% CAGR vs -10.8%).

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 ...

Delek US Holdings, Inc. is an oil refining, logistics and biofuels company founded in 2001 and headquartered in Brentwood, Tennessee.

BIIB vs DK — Head-to-Head

Bigger by revenue
DK
DK
1.1× larger
DK
$2.6B
$2.5B
BIIB
Growing faster (revenue YoY)
BIIB
BIIB
+1.6% gap
BIIB
2.0%
0.4%
DK
Higher net margin
BIIB
BIIB
20.5% more per $
BIIB
12.9%
-7.7%
DK
Faster 2-yr revenue CAGR
BIIB
BIIB
Annualised
BIIB
0.3%
-10.8%
DK

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
BIIB
BIIB
DK
DK
Revenue
$2.5B
$2.6B
Net Profit
$319.5M
$-201.3M
Gross Margin
-5.8%
Operating Margin
Net Margin
12.9%
-7.7%
Revenue YoY
2.0%
0.4%
Net Profit YoY
32.8%
-16.6%
EPS (diluted)
$2.15
$-3.34

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
DK
DK
Q1 26
$2.5B
$2.6B
Q4 25
$2.3B
$2.4B
Q3 25
$2.5B
$2.9B
Q2 25
$2.6B
$2.8B
Q1 25
$2.4B
$2.6B
Q4 24
$2.5B
$2.4B
Q3 24
$2.5B
$3.0B
Q2 24
$2.5B
$3.3B
Net Profit
BIIB
BIIB
DK
DK
Q1 26
$319.5M
$-201.3M
Q4 25
$-48.9M
$78.3M
Q3 25
$466.5M
$178.0M
Q2 25
$634.8M
$-106.4M
Q1 25
$240.5M
$-172.7M
Q4 24
$266.7M
$-413.8M
Q3 24
$388.5M
$-76.8M
Q2 24
$583.6M
$-37.2M
Gross Margin
BIIB
BIIB
DK
DK
Q1 26
-5.8%
Q4 25
78.3%
9.3%
Q3 25
73.4%
13.8%
Q2 25
77.1%
1.9%
Q1 25
74.1%
-2.4%
Q4 24
76.2%
-5.7%
Q3 24
74.1%
-0.7%
Q2 24
77.8%
0.5%
Operating Margin
BIIB
BIIB
DK
DK
Q1 26
Q4 25
-2.5%
6.8%
Q3 25
22.0%
10.2%
Q2 25
28.1%
-1.2%
Q1 25
12.8%
-4.8%
Q4 24
11.9%
-17.0%
Q3 24
18.3%
-4.0%
Q2 24
28.3%
0.1%
Net Margin
BIIB
BIIB
DK
DK
Q1 26
12.9%
-7.7%
Q4 25
-2.1%
3.2%
Q3 25
18.4%
6.2%
Q2 25
24.0%
-3.8%
Q1 25
9.9%
-6.5%
Q4 24
10.9%
-17.4%
Q3 24
15.8%
-2.5%
Q2 24
23.7%
-1.1%
EPS (diluted)
BIIB
BIIB
DK
DK
Q1 26
$2.15
$-3.34
Q4 25
$-0.35
$1.23
Q3 25
$3.17
$2.93
Q2 25
$4.33
$-1.76
Q1 25
$1.64
$-2.78
Q4 24
$1.82
$-6.48
Q3 24
$2.66
$-1.20
Q2 24
$4.00
$-0.58

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
DK
DK
Cash + ST InvestmentsLiquidity on hand
$3.4B
$624.1M
Total DebtLower is stronger
$3.2B
Stockholders' EquityBook value
$18.7B
$302.0M
Total Assets
$29.5B
$7.6B
Debt / EquityLower = less leverage
10.54×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
DK
DK
Q1 26
$3.4B
$624.1M
Q4 25
$625.8M
Q3 25
$630.9M
Q2 25
$615.5M
Q1 25
$623.8M
Q4 24
$735.6M
Q3 24
$1.0B
Q2 24
$657.9M
Total Debt
BIIB
BIIB
DK
DK
Q1 26
$3.2B
Q4 25
$6.3B
$3.2B
Q3 25
$6.3B
$3.2B
Q2 25
$6.3B
$3.1B
Q1 25
$4.5B
$3.0B
Q4 24
$6.3B
$2.8B
Q3 24
$4.5B
$2.8B
Q2 24
$6.3B
$2.5B
Stockholders' Equity
BIIB
BIIB
DK
DK
Q1 26
$18.7B
$302.0M
Q4 25
$18.3B
$547.3M
Q3 25
$18.2B
$444.8M
Q2 25
$17.6B
$294.9M
Q1 25
$17.0B
$429.4M
Q4 24
$16.7B
$575.2M
Q3 24
$16.4B
$875.4M
Q2 24
$15.9B
$982.8M
Total Assets
BIIB
BIIB
DK
DK
Q1 26
$29.5B
$7.6B
Q4 25
$29.4B
$6.8B
Q3 25
$29.2B
$7.1B
Q2 25
$28.3B
$7.1B
Q1 25
$28.0B
$6.9B
Q4 24
$28.0B
$6.7B
Q3 24
$28.3B
$7.0B
Q2 24
$26.8B
$6.9B
Debt / Equity
BIIB
BIIB
DK
DK
Q1 26
10.54×
Q4 25
0.34×
5.91×
Q3 25
0.35×
7.14×
Q2 25
0.36×
10.51×
Q1 25
0.27×
7.07×
Q4 24
0.38×
4.81×
Q3 24
0.28×
3.19×
Q2 24
0.40×
2.50×

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
DK
DK
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
DK
DK
Q1 26
Q4 25
$511.9M
$502.8M
Q3 25
$1.3B
$44.0M
Q2 25
$160.9M
$51.4M
Q1 25
$259.3M
$-62.4M
Q4 24
$760.9M
$-163.5M
Q3 24
$935.6M
$-21.6M
Q2 24
$625.8M
$-48.4M
Free Cash Flow
BIIB
BIIB
DK
DK
Q1 26
$594.3M
Q4 25
$468.0M
$382.8M
Q3 25
$1.2B
$-64.0M
Q2 25
$134.3M
$-114.4M
Q1 25
$222.2M
$-198.1M
Q4 24
$721.6M
$-354.0M
Q3 24
$900.6M
$-140.6M
Q2 24
$592.3M
$-128.3M
FCF Margin
BIIB
BIIB
DK
DK
Q1 26
24.0%
Q4 25
20.5%
15.8%
Q3 25
48.4%
-2.2%
Q2 25
5.1%
-4.1%
Q1 25
9.1%
-7.5%
Q4 24
29.4%
-14.9%
Q3 24
36.5%
-4.6%
Q2 24
24.0%
-3.9%
Capex Intensity
BIIB
BIIB
DK
DK
Q1 26
Q4 25
1.9%
4.9%
Q3 25
1.8%
3.7%
Q2 25
1.0%
6.0%
Q1 25
1.5%
5.1%
Q4 24
1.6%
8.0%
Q3 24
1.4%
3.9%
Q2 24
1.4%
2.4%
Cash Conversion
BIIB
BIIB
DK
DK
Q1 26
Q4 25
6.42×
Q3 25
2.73×
0.25×
Q2 25
0.25×
Q1 25
1.08×
Q4 24
2.85×
Q3 24
2.41×
Q2 24
1.07×

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%

DK
DK

Segment breakdown not available.

Related Comparisons