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Side-by-side financial comparison of Biogen (BIIB) and State Street Corporation (STT). Click either name above to swap in a different company.

State Street Corporation is the larger business by last-quarter revenue ($3.7B vs $2.3B, roughly 1.6× Biogen). State Street Corporation runs the higher net margin — 20.4% vs -2.1%, a 22.5% gap on every dollar of revenue. On growth, State Street Corporation posted the faster year-over-year revenue change (7.5% vs -7.1%). State Street Corporation produced more free cash flow last quarter ($9.8B vs $468.0M). Over the past eight quarters, State Street Corporation's revenue compounded faster (8.1% 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 ...

State Street Corporation is an American multinational financial services and bank holding company headquartered at One Congress Street in Boston. It is the second-oldest continuously operating U.S. bank, tracing its roots to Union Bank, chartered in 1792. As of the third quarter of 2025, State Street is one of the world's largest asset managers and custodians, with approximately US$5.4 trillion in assets under management and US$51.7 trillion under custody and administration.

BIIB vs STT — Head-to-Head

Bigger by revenue
STT
STT
1.6× larger
STT
$3.7B
$2.3B
BIIB
Growing faster (revenue YoY)
STT
STT
+14.6% gap
STT
7.5%
-7.1%
BIIB
Higher net margin
STT
STT
22.5% more per $
STT
20.4%
-2.1%
BIIB
More free cash flow
STT
STT
$9.3B more FCF
STT
$9.8B
$468.0M
BIIB
Faster 2-yr revenue CAGR
STT
STT
Annualised
STT
8.1%
-0.2%
BIIB

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
BIIB
BIIB
STT
STT
Revenue
$2.3B
$3.7B
Net Profit
$-48.9M
$747.0M
Gross Margin
78.3%
Operating Margin
-2.5%
25.0%
Net Margin
-2.1%
20.4%
Revenue YoY
-7.1%
7.5%
Net Profit YoY
-118.3%
-4.6%
EPS (diluted)
$-0.35
$2.41

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
STT
STT
Q4 25
$2.3B
$3.7B
Q3 25
$2.5B
$3.5B
Q2 25
$2.6B
$3.4B
Q1 25
$2.4B
$3.3B
Q4 24
$2.5B
$3.4B
Q3 24
$2.5B
$3.3B
Q2 24
$2.5B
$3.2B
Q1 24
$2.3B
$3.1B
Net Profit
BIIB
BIIB
STT
STT
Q4 25
$-48.9M
$747.0M
Q3 25
$466.5M
$861.0M
Q2 25
$634.8M
$693.0M
Q1 25
$240.5M
$644.0M
Q4 24
$266.7M
$783.0M
Q3 24
$388.5M
$730.0M
Q2 24
$583.6M
$711.0M
Q1 24
$393.4M
$463.0M
Gross Margin
BIIB
BIIB
STT
STT
Q4 25
78.3%
Q3 25
73.4%
Q2 25
77.1%
Q1 25
74.1%
Q4 24
76.2%
Q3 24
74.1%
Q2 24
77.8%
Q1 24
76.3%
Operating Margin
BIIB
BIIB
STT
STT
Q4 25
-2.5%
25.0%
Q3 25
22.0%
31.1%
Q2 25
28.1%
25.8%
Q1 25
12.8%
25.0%
Q4 24
11.9%
28.1%
Q3 24
18.3%
28.4%
Q2 24
28.3%
28.6%
Q1 24
20.3%
19.1%
Net Margin
BIIB
BIIB
STT
STT
Q4 25
-2.1%
20.4%
Q3 25
18.4%
24.3%
Q2 25
24.0%
20.1%
Q1 25
9.9%
19.6%
Q4 24
10.9%
22.9%
Q3 24
15.8%
22.4%
Q2 24
23.7%
22.3%
Q1 24
17.2%
14.8%
EPS (diluted)
BIIB
BIIB
STT
STT
Q4 25
$-0.35
$2.41
Q3 25
$3.17
$2.78
Q2 25
$4.33
$2.17
Q1 25
$1.64
$2.04
Q4 24
$1.82
$2.43
Q3 24
$2.66
$2.26
Q2 24
$4.00
$2.15
Q1 24
$2.70
$1.37

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
STT
STT
Cash + ST InvestmentsLiquidity on hand
Total DebtLower is stronger
$6.3B
Stockholders' EquityBook value
$18.3B
$27.8B
Total Assets
$29.4B
$366.0B
Debt / EquityLower = less leverage
0.34×

8-quarter trend — quarters aligned by calendar period.

Total Debt
BIIB
BIIB
STT
STT
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
STT
STT
Q4 25
$18.3B
$27.8B
Q3 25
$18.2B
$27.6B
Q2 25
$17.6B
$27.3B
Q1 25
$17.0B
$26.7B
Q4 24
$16.7B
$25.3B
Q3 24
$16.4B
$25.8B
Q2 24
$15.9B
$24.8B
Q1 24
$15.2B
$24.4B
Total Assets
BIIB
BIIB
STT
STT
Q4 25
$29.4B
$366.0B
Q3 25
$29.2B
$371.1B
Q2 25
$28.3B
$376.7B
Q1 25
$28.0B
$372.7B
Q4 24
$28.0B
$353.2B
Q3 24
$28.3B
$338.5B
Q2 24
$26.8B
$325.6B
Q1 24
$26.6B
$338.0B
Debt / Equity
BIIB
BIIB
STT
STT
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
STT
STT
Operating Cash FlowLast quarter
$511.9M
$10.0B
Free Cash FlowOCF − Capex
$468.0M
$9.8B
FCF MarginFCF / Revenue
20.5%
266.6%
Capex IntensityCapex / Revenue
1.9%
7.3%
Cash ConversionOCF / Net Profit
13.44×
TTM Free Cash FlowTrailing 4 quarters
$2.1B
$10.8B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
STT
STT
Q4 25
$511.9M
$10.0B
Q3 25
$1.3B
$7.9B
Q2 25
$160.9M
$-8.4B
Q1 25
$259.3M
$2.4B
Q4 24
$760.9M
$-7.4B
Q3 24
$935.6M
$2.7B
Q2 24
$625.8M
$-7.6B
Q1 24
$553.2M
$-844.0M
Free Cash Flow
BIIB
BIIB
STT
STT
Q4 25
$468.0M
$9.8B
Q3 25
$1.2B
$7.7B
Q2 25
$134.3M
$-8.8B
Q1 25
$222.2M
$2.2B
Q4 24
$721.6M
$-7.7B
Q3 24
$900.6M
$2.5B
Q2 24
$592.3M
$-7.9B
Q1 24
$507.3M
$-1.1B
FCF Margin
BIIB
BIIB
STT
STT
Q4 25
20.5%
266.6%
Q3 25
48.4%
216.0%
Q2 25
5.1%
-254.1%
Q1 25
9.1%
66.1%
Q4 24
29.4%
-225.1%
Q3 24
36.5%
75.9%
Q2 24
24.0%
-246.2%
Q1 24
22.1%
-34.2%
Capex Intensity
BIIB
BIIB
STT
STT
Q4 25
1.9%
7.3%
Q3 25
1.8%
6.9%
Q2 25
1.0%
9.3%
Q1 25
1.5%
6.9%
Q4 24
1.6%
7.3%
Q3 24
1.4%
7.2%
Q2 24
1.4%
6.7%
Q1 24
2.0%
7.3%
Cash Conversion
BIIB
BIIB
STT
STT
Q4 25
13.44×
Q3 25
2.73×
9.18×
Q2 25
0.25×
-12.18×
Q1 25
1.08×
3.72×
Q4 24
2.85×
-9.49×
Q3 24
2.41×
3.71×
Q2 24
1.07×
-10.75×
Q1 24
1.41×
-1.82×

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%

STT
STT

Other$2.2B59%
Investment Management$729.0M20%
Management Services$662.0M18%
Other Fee Revenue$56.0M2%
Securities Financing Services$54.0M1%

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