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Side-by-side financial comparison of Biogen (BIIB) and Flutter Entertainment plc (FLUT). Click either name above to swap in a different company.

Flutter Entertainment plc is the larger business by last-quarter revenue ($4.7B vs $2.5B, roughly 1.9× Biogen). Biogen runs the higher net margin — 12.9% vs 0.2%, a 12.7% gap on every dollar of revenue. On growth, Flutter Entertainment plc posted the faster year-over-year revenue change (24.9% vs 2.0%). Biogen produced more free cash flow last quarter ($594.3M vs $392.0M). Over the past eight quarters, Flutter Entertainment plc's revenue compounded faster (18.1% 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 ...

Flutter Entertainment plc is an Irish-American multinational sports betting and gambling company. It is listed on the New York Stock Exchange and has a secondary listing on the London Stock Exchange. It owns brands such as Betfair, FanDuel, Paddy Power, PokerStars, Sky Betting & Gaming, and Sportsbet. Flutter is the world's largest online betting company.

BIIB vs FLUT — Head-to-Head

Bigger by revenue
FLUT
FLUT
1.9× larger
FLUT
$4.7B
$2.5B
BIIB
Growing faster (revenue YoY)
FLUT
FLUT
+22.9% gap
FLUT
24.9%
2.0%
BIIB
Higher net margin
BIIB
BIIB
12.7% more per $
BIIB
12.9%
0.2%
FLUT
More free cash flow
BIIB
BIIB
$202.3M more FCF
BIIB
$594.3M
$392.0M
FLUT
Faster 2-yr revenue CAGR
FLUT
FLUT
Annualised
FLUT
18.1%
0.3%
BIIB

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
BIIB
BIIB
FLUT
FLUT
Revenue
$2.5B
$4.7B
Net Profit
$319.5M
$10.0M
Gross Margin
44.5%
Operating Margin
5.4%
Net Margin
12.9%
0.2%
Revenue YoY
2.0%
24.9%
Net Profit YoY
32.8%
-93.6%
EPS (diluted)
$2.15
$0.00

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
FLUT
FLUT
Q1 26
$2.5B
Q4 25
$2.3B
$4.7B
Q3 25
$2.5B
$3.8B
Q2 25
$2.6B
$4.2B
Q1 25
$2.4B
$3.7B
Q4 24
$2.5B
$3.8B
Q3 24
$2.5B
$3.2B
Q2 24
$2.5B
$3.6B
Net Profit
BIIB
BIIB
FLUT
FLUT
Q1 26
$319.5M
Q4 25
$-48.9M
$10.0M
Q3 25
$466.5M
$-789.0M
Q2 25
$634.8M
$37.0M
Q1 25
$240.5M
$335.0M
Q4 24
$266.7M
$156.0M
Q3 24
$388.5M
$-114.0M
Q2 24
$583.6M
$297.0M
Gross Margin
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
78.3%
44.5%
Q3 25
73.4%
42.9%
Q2 25
77.1%
46.8%
Q1 25
74.1%
46.6%
Q4 24
76.2%
48.2%
Q3 24
74.1%
46.1%
Q2 24
77.8%
49.2%
Operating Margin
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
-2.5%
5.4%
Q3 25
22.0%
-22.0%
Q2 25
28.1%
9.3%
Q1 25
12.8%
6.1%
Q4 24
11.9%
7.4%
Q3 24
18.3%
3.0%
Q2 24
28.3%
10.2%
Net Margin
BIIB
BIIB
FLUT
FLUT
Q1 26
12.9%
Q4 25
-2.1%
0.2%
Q3 25
18.4%
-20.8%
Q2 25
24.0%
0.9%
Q1 25
9.9%
9.1%
Q4 24
10.9%
4.1%
Q3 24
15.8%
-3.5%
Q2 24
23.7%
8.2%
EPS (diluted)
BIIB
BIIB
FLUT
FLUT
Q1 26
$2.15
Q4 25
$-0.35
$0.00
Q3 25
$3.17
$-3.91
Q2 25
$4.33
$0.59
Q1 25
$1.64
$1.57
Q4 24
$1.82
$0.47
Q3 24
$2.66
$-0.58
Q2 24
$4.00
$1.45

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
FLUT
FLUT
Cash + ST InvestmentsLiquidity on hand
$3.4B
$1.8B
Total DebtLower is stronger
$12.3B
Stockholders' EquityBook value
$18.7B
$9.0B
Total Assets
$29.5B
$29.3B
Debt / EquityLower = less leverage
1.36×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
FLUT
FLUT
Q1 26
$3.4B
Q4 25
$1.8B
Q3 25
$1.7B
Q2 25
$1.7B
Q1 25
$1.5B
Q4 24
$1.5B
Q3 24
$1.5B
Q2 24
$1.5B
Total Debt
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
$6.3B
$12.3B
Q3 25
$6.3B
$12.1B
Q2 25
$6.3B
$10.0B
Q1 25
$4.5B
$6.8B
Q4 24
$6.3B
$6.7B
Q3 24
$4.5B
$6.9B
Q2 24
$6.3B
$6.8B
Stockholders' Equity
BIIB
BIIB
FLUT
FLUT
Q1 26
$18.7B
Q4 25
$18.3B
$9.0B
Q3 25
$18.2B
$9.2B
Q2 25
$17.6B
$10.2B
Q1 25
$17.0B
$9.9B
Q4 24
$16.7B
$9.3B
Q3 24
$16.4B
$10.2B
Q2 24
$15.9B
$9.9B
Total Assets
BIIB
BIIB
FLUT
FLUT
Q1 26
$29.5B
Q4 25
$29.4B
$29.3B
Q3 25
$29.2B
$29.3B
Q2 25
$28.3B
$29.9B
Q1 25
$28.0B
$24.8B
Q4 24
$28.0B
$24.5B
Q3 24
$28.3B
$25.5B
Q2 24
$26.8B
$24.3B
Debt / Equity
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
0.34×
1.36×
Q3 25
0.35×
1.31×
Q2 25
0.36×
0.97×
Q1 25
0.27×
0.69×
Q4 24
0.38×
0.72×
Q3 24
0.28×
0.67×
Q2 24
0.40×
0.69×

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
FLUT
FLUT
Operating Cash FlowLast quarter
$428.0M
Free Cash FlowOCF − Capex
$594.3M
$392.0M
FCF MarginFCF / Revenue
24.0%
8.3%
Capex IntensityCapex / Revenue
0.8%
Cash ConversionOCF / Net Profit
42.80×
TTM Free Cash FlowTrailing 4 quarters
$2.4B
$1.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
$511.9M
$428.0M
Q3 25
$1.3B
$209.0M
Q2 25
$160.9M
$359.0M
Q1 25
$259.3M
$188.0M
Q4 24
$760.9M
$652.0M
Q3 24
$935.6M
$290.0M
Q2 24
$625.8M
$323.0M
Free Cash Flow
BIIB
BIIB
FLUT
FLUT
Q1 26
$594.3M
Q4 25
$468.0M
$392.0M
Q3 25
$1.2B
$196.0M
Q2 25
$134.3M
$322.0M
Q1 25
$222.2M
$169.0M
Q4 24
$721.6M
$595.0M
Q3 24
$900.6M
$253.0M
Q2 24
$592.3M
$295.0M
FCF Margin
BIIB
BIIB
FLUT
FLUT
Q1 26
24.0%
Q4 25
20.5%
8.3%
Q3 25
48.4%
5.2%
Q2 25
5.1%
7.7%
Q1 25
9.1%
4.6%
Q4 24
29.4%
15.7%
Q3 24
36.5%
7.8%
Q2 24
24.0%
8.2%
Capex Intensity
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
1.9%
0.8%
Q3 25
1.8%
0.3%
Q2 25
1.0%
0.9%
Q1 25
1.5%
0.5%
Q4 24
1.6%
1.5%
Q3 24
1.4%
1.1%
Q2 24
1.4%
0.8%
Cash Conversion
BIIB
BIIB
FLUT
FLUT
Q1 26
Q4 25
42.80×
Q3 25
2.73×
Q2 25
0.25×
9.70×
Q1 25
1.08×
0.56×
Q4 24
2.85×
4.18×
Q3 24
2.41×
Q2 24
1.07×
1.09×

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%

FLUT
FLUT

Other$2.6B55%
Sports Book$1.5B32%
Igaming$586.0M12%
Service Other$59.0M1%

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