Biogen [BIIB] vs Eli Lilly and [LLY] Detailed Stock Comparison

TLDR: Quick Comparison Summary

Based on 21 vital metrics comparison: Biogen Inc. wins in 8 metrics, Eli Lilly and Company wins in 12 metrics, with 0 ties. Eli Lilly and Company appears stronger overall.

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Vital Metrics Comparison

Metric Biogen Inc. Eli Lilly and Company Better
P/E Ratio (TTM) 20.96 40.09 Biogen Inc.
Price-to-Book Ratio 1.48 31.01 Biogen Inc.
Debt-to-Equity Ratio 36.47 165.31 Biogen Inc.
PEG Ratio -0.18 0.79 Eli Lilly and Company
EV/EBITDA 8.44 26.61 Biogen Inc.
Profit Margin (TTM) 13.07% 31.67% Eli Lilly and Company
Operating Margin (TTM) 19.64% 44.90% Eli Lilly and Company
EBITDA Margin (TTM) 19.64% 44.90% Eli Lilly and Company
Return on Equity 7.39% 101.16% Eli Lilly and Company
Return on Assets (TTM) 6.14% 19.42% Eli Lilly and Company
Free Cash Flow (TTM) $1.97B $5.96B Eli Lilly and Company
Dividend Yield N/A 0.60% N/A
1-Year Return 51.01% 49.80% Biogen Inc.
Price-to-Sales Ratio (TTM) 2.73 12.63 Biogen Inc.
Enterprise Value $30.41B $843.37B Eli Lilly and Company
EV/Revenue Ratio 3.08 12.94 Biogen Inc.
Gross Profit Margin (TTM) 78.26% 82.52% Eli Lilly and Company
Revenue per Share (TTM) $68 $73 Eli Lilly and Company
Earnings per Share (Diluted) $8.79 $22.94 Eli Lilly and Company
Beta (Stock Volatility) 0.16 0.50 Biogen Inc.
Short % of Float 3.37% 0.97% Eli Lilly and Company

Biogen Inc. vs Eli Lilly and Company Stock Performance Analysis

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Performance Comparison

Short-term Returns

Stock1D1W1M3M6MYTD
Biogen Inc.3.78%-2.20%0.87%0.41%4.80%6.19%
Eli Lilly and Company1.81%-0.01%9.99%4.58%1.77%-1.46%

Long-term Returns

Stock1Y3Y5Y10Y15Y20Y
Biogen Inc.51.01%-34.71%-31.50%-32.47%107.63%310.82%
Eli Lilly and Company49.80%149.81%446.98%1,370.98%2,882.46%2,023.77%

Performance & Financial Health Analysis: Biogen Inc. vs Eli Lilly and Company

MetricBIIBLLY
Market Information
Market Cap i$27.06B$821.31B
Market Cap CategoryLarge capMega cap
10 Day Avg. Volume i1,101,5032,387,476
90 Day Avg. Volume i1,198,6542,777,749
Last Close$195.96$1,083.46
52 Week Range$121.05 - $205.97$623.78 - $1,149.10
% from 52W High-4.86%-5.71%
All-Time High$480.18 (Mar 16, 2015)$1,149.10 (May 28, 2026)
% from All-Time High-59.19%-5.71%
Growth Metrics
Quarterly Revenue Growth-0.07%0.43%
Quarterly Earnings Growth-0.07%0.51%
Financial Health
Profit Margin (TTM) i0.13%0.32%
Operating Margin (TTM) i0.20%0.45%
Return on Equity (TTM) i0.07%1.01%
Debt to Equity (MRQ) i36.47165.31
Cash & Liquidity
Book Value per Share (MRQ)$124.37$29.66
Cash per Share (MRQ)$26.00$8.14
Operating Cash Flow (TTM) i$2.20B$16.81B
Levered Free Cash Flow (TTM) i$1.98B$1.95B
Dividends
Last 12-Month Dividend Yield iN/A0.60%
Last 12-Month Dividend iN/A$6.23

Valuation & Enterprise Metrics Analysis: Biogen Inc. vs Eli Lilly and Company

MetricBIIB (Apr 26, 2026)LLY (Apr 24, 2026)
Price Ratios
P/E Ratio (TTM) i20.9640.09
Forward P/E i11.5121.82
PEG Ratio i-0.180.79
Price to Sales (TTM) i2.7312.63
Price to Book (MRQ) i1.4831.01
Market Capitalization
Market Capitalization i$27.06B$821.31B
Enterprise Value i$30.41B$843.37B
Enterprise Value Metrics
Enterprise to Revenue i3.0812.94
Enterprise to EBITDA i8.4426.61
Risk & Other Metrics
Beta i0.160.50
Book Value per Share (MRQ) i$124.37$29.66

Financial Statements Comparison: Biogen Inc. vs Eli Lilly and Company

Financial Metrics

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Revenue

Operating Margin

Profit Margin

Long Term Debt

Income Flow Analysis

Financial Statements Comparison

Income Statement

MetricBIIB (2025)LLY (2025)
Revenue/Sales i9.89B65.18B
Cost of Goods Sold i2.40B11.05B
COGS % of Revenue i24.3%17.0%
Gross Profit i7.49B54.13B
Gross Margin i75.7%83.0%
Research & Development i1.78B13.34B
Operating Income (EBIT) i2.47B29.70B
Operating Margin i25.0%45.6%
EBITDA i3.40B35.09B
EBITDA Margin i34.4%53.8%
Pre-Tax Income i1.56B25.73B
Pre-Tax Income % of Revenue i15.7%39.5%
Income Tax i263.60M5.09B
Income Tax % of Revenue i2.7%7.8%
Net Income (Profit) i1.29B20.64B
Profit Margin i13.1%31.7%

Balance Sheet & Liquidity Metrics

MetricBIIB (2025)LLY (2025)
Cash & Equivalents i3.01B7.27B
Total Current Assets i8.97B55.63B
Total Current Assets % of Revenue i90.7%85.3%
Total Current Liabilities i3.35B35.23B
Total Current Liabilities % of Revenue i33.9%54.0%
Long-Term Debt i6.58B40.87B
Long-Term Debt % of Revenue i66.5%62.7%
Total Shareholders Equity i18.26B26.54B
Retained Earnings i20.55B24.47B
Retained Earnings % of Revenue i207.8%37.5%
Property, Plant & Equipment i265.40M13.49B

Cash Flow Statement Comparison

MetricBIIB (2025)LLY (2025)
Operating Cash Flow i1.95B23.60B
Operating Cash Flow % of Revenue i19.8%36.2%
Capital Expenditures i-153.80M-7.84B
Free Cash Flow i1.97B5.96B
FCF Margin i19.9%9.2%
Debt Repayment i-1.75B-778.00M
Common Stock Repurchase iN/A-4.11B

Short Interest & Institutional Ownership Analysis

MetricBIIBLLY
Shares Short i3.83M7.70M
Short Ratio i3.962.73
Short % of Float i3.37%0.97%
Shares Outstanding i146.80M894.80M
Float Shares i146.28M890.99M
% Held by Insiders i0.17%0.17%
% Held by Institutions i98.82%84.77%
% Held by Public i1.01%15.06%

Dividend Analysis & Yield Comparison: Biogen Inc. vs Eli Lilly and Company

MetricBIIBLLY
Last 12-Month Dividend iN/A$6.23
Last 12-Month Dividend Yield iN/A0.60%
3-Year Avg Annual Dividend iN/A$5.44
3-Year Avg Dividend Yield iN/A0.18%
3-Year Total Dividends iN/A$16.32
Ex-Dividend DateN/AFeb 13, 2026