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Side-by-side financial comparison of Alcoa Corp (AA) and Biogen (BIIB). Click either name above to swap in a different company.

Alcoa Corp is the larger business by last-quarter revenue ($3.4B vs $2.5B, roughly 1.4× Biogen). Biogen runs the higher net margin — 12.9% vs 6.2%, a 6.7% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (2.0% vs -1.1%). Biogen produced more free cash flow last quarter ($594.3M vs $294.0M). Over the past eight quarters, Alcoa Corp's revenue compounded faster (15.2% CAGR vs 0.3%).

Alcoa Corporation is an American industrial corporation that produces aluminum. According to industry rankings, it is among the largest producers globally. The company operates in 10 countries and is involved in mining, refining, smelting, fabricating, and recycling aluminum products.

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 ...

AA vs BIIB — Head-to-Head

Bigger by revenue
AA
AA
1.4× larger
AA
$3.4B
$2.5B
BIIB
Growing faster (revenue YoY)
BIIB
BIIB
+3.1% gap
BIIB
2.0%
-1.1%
AA
Higher net margin
BIIB
BIIB
6.7% more per $
BIIB
12.9%
6.2%
AA
More free cash flow
BIIB
BIIB
$300.3M more FCF
BIIB
$594.3M
$294.0M
AA
Faster 2-yr revenue CAGR
AA
AA
Annualised
AA
15.2%
0.3%
BIIB

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AA
AA
BIIB
BIIB
Revenue
$3.4B
$2.5B
Net Profit
$213.0M
$319.5M
Gross Margin
Operating Margin
2.0%
Net Margin
6.2%
12.9%
Revenue YoY
-1.1%
2.0%
Net Profit YoY
5.4%
32.8%
EPS (diluted)
$0.80
$2.15

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
AA
AA
BIIB
BIIB
Q1 26
$2.5B
Q4 25
$3.4B
$2.3B
Q3 25
$3.0B
$2.5B
Q2 25
$3.0B
$2.6B
Q1 25
$3.4B
$2.4B
Q4 24
$3.5B
$2.5B
Q3 24
$2.9B
$2.5B
Q2 24
$2.9B
$2.5B
Net Profit
AA
AA
BIIB
BIIB
Q1 26
$319.5M
Q4 25
$213.0M
$-48.9M
Q3 25
$232.0M
$466.5M
Q2 25
$164.0M
$634.8M
Q1 25
$548.0M
$240.5M
Q4 24
$202.0M
$266.7M
Q3 24
$90.0M
$388.5M
Q2 24
$20.0M
$583.6M
Gross Margin
AA
AA
BIIB
BIIB
Q1 26
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%
Operating Margin
AA
AA
BIIB
BIIB
Q1 26
Q4 25
2.0%
-2.5%
Q3 25
5.6%
22.0%
Q2 25
5.3%
28.1%
Q1 25
19.8%
12.8%
Q4 24
9.7%
11.9%
Q3 24
6.3%
18.3%
Q2 24
3.2%
28.3%
Net Margin
AA
AA
BIIB
BIIB
Q1 26
12.9%
Q4 25
6.2%
-2.1%
Q3 25
7.7%
18.4%
Q2 25
5.4%
24.0%
Q1 25
16.3%
9.9%
Q4 24
5.8%
10.9%
Q3 24
3.1%
15.8%
Q2 24
0.7%
23.7%
EPS (diluted)
AA
AA
BIIB
BIIB
Q1 26
$2.15
Q4 25
$0.80
$-0.35
Q3 25
$0.88
$3.17
Q2 25
$0.62
$4.33
Q1 25
$2.07
$1.64
Q4 24
$1.18
$1.82
Q3 24
$0.38
$2.66
Q2 24
$0.11
$4.00

Balance Sheet & Financial Strength

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

Metric
AA
AA
BIIB
BIIB
Cash + ST InvestmentsLiquidity on hand
$1.6B
$3.4B
Total DebtLower is stronger
$2.4B
Stockholders' EquityBook value
$6.1B
$18.7B
Total Assets
$16.1B
$29.5B
Debt / EquityLower = less leverage
0.40×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AA
AA
BIIB
BIIB
Q1 26
$3.4B
Q4 25
$1.6B
Q3 25
$1.5B
Q2 25
$1.5B
Q1 25
$1.2B
Q4 24
$1.1B
Q3 24
$1.3B
Q2 24
$1.4B
Total Debt
AA
AA
BIIB
BIIB
Q1 26
Q4 25
$2.4B
$6.3B
Q3 25
$2.6B
$6.3B
Q2 25
$2.6B
$6.3B
Q1 25
$2.6B
$4.5B
Q4 24
$2.5B
$6.3B
Q3 24
$2.5B
$4.5B
Q2 24
$2.5B
$6.3B
Stockholders' Equity
AA
AA
BIIB
BIIB
Q1 26
$18.7B
Q4 25
$6.1B
$18.3B
Q3 25
$6.3B
$18.2B
Q2 25
$6.1B
$17.6B
Q1 25
$5.8B
$17.0B
Q4 24
$5.2B
$16.7B
Q3 24
$5.3B
$16.4B
Q2 24
$3.9B
$15.9B
Total Assets
AA
AA
BIIB
BIIB
Q1 26
$29.5B
Q4 25
$16.1B
$29.4B
Q3 25
$16.0B
$29.2B
Q2 25
$15.0B
$28.3B
Q1 25
$14.6B
$28.0B
Q4 24
$14.1B
$28.0B
Q3 24
$14.5B
$28.3B
Q2 24
$14.3B
$26.8B
Debt / Equity
AA
AA
BIIB
BIIB
Q1 26
Q4 25
0.40×
0.34×
Q3 25
0.41×
0.35×
Q2 25
0.42×
0.36×
Q1 25
0.44×
0.27×
Q4 24
0.48×
0.38×
Q3 24
0.47×
0.28×
Q2 24
0.63×
0.40×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AA
AA
BIIB
BIIB
Operating Cash FlowLast quarter
$537.0M
Free Cash FlowOCF − Capex
$294.0M
$594.3M
FCF MarginFCF / Revenue
8.5%
24.0%
Capex IntensityCapex / Revenue
7.0%
Cash ConversionOCF / Net Profit
2.52×
TTM Free Cash FlowTrailing 4 quarters
$567.0M
$2.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AA
AA
BIIB
BIIB
Q1 26
Q4 25
$537.0M
$511.9M
Q3 25
$85.0M
$1.3B
Q2 25
$488.0M
$160.9M
Q1 25
$75.0M
$259.3M
Q4 24
$415.0M
$760.9M
Q3 24
$143.0M
$935.6M
Q2 24
$287.0M
$625.8M
Free Cash Flow
AA
AA
BIIB
BIIB
Q1 26
$594.3M
Q4 25
$294.0M
$468.0M
Q3 25
$-66.0M
$1.2B
Q2 25
$357.0M
$134.3M
Q1 25
$-18.0M
$222.2M
Q4 24
$246.0M
$721.6M
Q3 24
$-3.0M
$900.6M
Q2 24
$123.0M
$592.3M
FCF Margin
AA
AA
BIIB
BIIB
Q1 26
24.0%
Q4 25
8.5%
20.5%
Q3 25
-2.2%
48.4%
Q2 25
11.8%
5.1%
Q1 25
-0.5%
9.1%
Q4 24
7.1%
29.4%
Q3 24
-0.1%
36.5%
Q2 24
4.2%
24.0%
Capex Intensity
AA
AA
BIIB
BIIB
Q1 26
Q4 25
7.0%
1.9%
Q3 25
5.0%
1.8%
Q2 25
4.3%
1.0%
Q1 25
2.8%
1.5%
Q4 24
4.8%
1.6%
Q3 24
5.0%
1.4%
Q2 24
5.6%
1.4%
Cash Conversion
AA
AA
BIIB
BIIB
Q1 26
Q4 25
2.52×
Q3 25
0.37×
2.73×
Q2 25
2.98×
0.25×
Q1 25
0.14×
1.08×
Q4 24
2.05×
2.85×
Q3 24
1.59×
2.41×
Q2 24
14.35×
1.07×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AA
AA

Aluminum$2.5B72%
Third Party Sales$979.0M28%

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%

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