AMRN vs. BIIB
AMRN (Amarin Corporation plc) and BIIB (Biogen Inc.) are both stocks. Both are in the Healthcare sector — AMRN in Biotechnology, BIIB in Drug Manufacturers - General. Over the past 10 years, AMRN returned -8.86%/yr vs -1.36%/yr for BIIB. At a 0.13 correlation, their price movements are largely independent.
Performance
AMRN vs. BIIB - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with AMRN having a 13.29% return and BIIB slightly higher at 13.48%. Over the past 10 years, AMRN has underperformed BIIB with an annualized return of -8.86%, while BIIB has yielded a comparatively higher -1.36% annualized return.
AMRN
- 1D
- -1.37%
- 1M
- 9.56%
- YTD
- 13.29%
- 6M
- 16.25%
- 1Y
- 26.08%
- 3Y*
- -11.49%
- 5Y*
- -29.50%
- 10Y*
- -8.86%
BIIB
- 1D
- 1.59%
- 1M
- 3.07%
- YTD
- 13.48%
- 6M
- 14.32%
- 1Y
- 57.20%
- 3Y*
- -11.13%
- 5Y*
- -11.69%
- 10Y*
- -1.36%
AMRN vs. BIIB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMRN Amarin Corporation plc | 13.29% | 43.87% | -44.25% | -28.10% | -64.09% | -31.08% | -77.19% | 57.53% | 239.40% | 30.19% |
BIIB Biogen Inc. | 13.48% | 15.09% | -40.91% | -6.55% | 15.42% | -2.02% | -17.48% | -1.39% | -5.54% | 12.34% |
Correlation
The correlation between AMRN and BIIB is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.23 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.24 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.29 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.28 |
Correlation (All Time) Calculated using the full available price history since Apr 5, 1993 | 0.13 |
The correlation between AMRN and BIIB shifts across timeframes, from 0.13 (all time) to 0.29 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
AMRN:
-$0.15
BIIB:
$12.48
AMRN:
18.71
BIIB:
2.23
AMRN:
$185.17M
BIIB:
$9.86B
AMRN:
$113.51M
BIIB:
$5.06B
AMRN:
-$8.44M
BIIB:
$2.24B
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Return for Risk
AMRN vs. BIIB — Risk / Return Rank
AMRN
BIIB
AMRN vs. BIIB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amarin Corporation plc (AMRN) and Biogen Inc. (BIIB). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| AMRN | BIIB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.22 | ||
| Sortino ratioReturn per unit of downside risk | -1.30 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.29 | -0.14 |
| Calmar ratioReturn relative to maximum drawdown | 0.79 | 4.01 | -3.22 |
| Martin ratioReturn relative to average drawdown | 1.19 | 10.02 | -8.83 |
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Drawdowns
AMRN vs. BIIB - Drawdown Comparison
The maximum AMRN drawdown since its inception was -99.97%, which is greater than BIIB's maximum drawdown of -89.98%. Use the drawdown chart below to compare losses from any high point for AMRN and BIIB.
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Drawdown Indicators
| AMRN | BIIB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.97% | -89.98% | -9.99% |
Max Drawdown (1Y)Largest decline over 1 year | -33.33% | -14.34% | -18.99% |
Max Drawdown (3Y)Largest decline over 3 years | -72.02% | -60.34% | -11.68% |
Max Drawdown (5Y)Largest decline over 5 years | -93.15% | -69.28% | -23.87% |
Max Drawdown (10Y)Largest decline over 10 years | -98.34% | -72.66% | -25.68% |
Current DrawdownCurrent decline from peak | -99.94% | -58.04% | -41.90% |
Average DrawdownAverage peak-to-trough decline | -90.41% | -36.63% | -53.78% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 21.94% | 5.73% | +16.21% |
Volatility
AMRN vs. BIIB - Volatility Comparison
Amarin Corporation plc (AMRN) has a higher volatility of 9.56% compared to Biogen Inc. (BIIB) at 8.30%. This indicates that AMRN's price experiences larger fluctuations and is considered to be riskier than BIIB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMRN | BIIB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.56% | 8.30% | +1.26% |
Volatility (6M)Calculated over the trailing 6-month period | 32.79% | 24.36% | +8.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.63% | 33.44% | +19.19% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 69.42% | 34.27% | +35.15% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 121.65% | 41.32% | +80.33% |
Dividends
AMRN vs. BIIB - Dividend Comparison
Neither AMRN nor BIIB has paid dividends to shareholders.
Financials
AMRN vs. BIIB - Financials Comparison
This section allows you to compare key financial metrics between Amarin Corporation plc and Biogen Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
AMRN vs. BIIB - Profitability Comparison
AMRN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Amarin Corporation plc reported a gross profit of 17.77M and revenue of 43.33M. Therefore, the gross margin over that period was 41.0%.
BIIB - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Biogen Inc. reported a gross profit of 0.00 and revenue of 2.48B. Therefore, the gross margin over that period was 0.0%.
AMRN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Amarin Corporation plc reported an operating income of -8.01M and revenue of 43.33M, resulting in an operating margin of -18.5%.
BIIB - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Biogen Inc. reported an operating income of 0.00 and revenue of 2.48B, resulting in an operating margin of 0.0%.
AMRN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Amarin Corporation plc reported a net income of -10.51M and revenue of 43.33M, resulting in a net margin of -24.3%.
BIIB - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Biogen Inc. reported a net income of 319.50M and revenue of 2.48B, resulting in a net margin of 12.9%.
Frequently Asked Questions
AMRN and BIIB have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AMRN has higher volatility (9.56%) compared to BIIB (8.30%). In terms of maximum drawdown, AMRN dropped -99.97% vs BIIB's -89.98%.
BIIB currently has the higher Sharpe Ratio (1.72 vs 0.50), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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