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ALNY vs. RPRX: Alnylam Pharmaceuticals vs. Royalty Pharma Stock Comparison

How do Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX) both fall under the Pharmaceuticals, Biotechnology & Life Sciences industry group, but ALNY is classified in Biotechnology while RPRX is classified in Pharmaceuticals.

Alnylam Pharmaceuticals (ALNY) has more than two decades of public-market history since June 1, 2004, whereas Royalty Pharma (RPRX) listed on June 16, 2020 and has a much shorter record to draw on.

Company profile comparison for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
Profile ItemALNYRPRX
NameAlnylam Pharmaceuticals, Inc.Royalty Pharma plc Class A Ordinary Shares
Country/RegionUnited StatesUnited States
GICS SectorHealth CareHealth Care
GICS Industry GroupPharmaceuticals, Biotechnology & Life SciencesPharmaceuticals, Biotechnology & Life Sciences
GICS IndustryBiotechnologyPharmaceuticals
GICS Sub-IndustryBiotechnologyPharmaceuticals
Market Capitalization20.89 billion USD38.70 billion USD
CurrencyUSDUSD
ExchangeNasdaqNasdaq
Listing DateJune 1, 2004June 16, 2020
Security TypeCommon StockCommon Stock

Price Performance

Cumulative Growth

ALNY
RPRX
GSPC
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Total Return (1Y)-64.57%81.08%
Total Return (3Y, Annualized)-1.58%39.21%
Total Return (5Y, Annualized)-3.13%14.22%

Risk Profile

Drawdown History

ALNY
RPRX
GSPC
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Volatility (1Y, Annualized)54.08%22.05%
Beta (5Y)0.450.36
Max Drawdown (5Y)-68.25%-41.98%
Avg. Volume (3M)1.90M3.10M

Risk-Adjusted Performance

Risk-Return Positioning

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ALNY and RPRX are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Sharpe Ratio (1Y)-1.273.48
Sortino Ratio (1Y)-1.455.72

Profitability

ROE (TTM)

Both companies show strong equity returns, but Alnylam Pharmaceuticals (ALNY) at 138.07% is the standout with ROE above its industry range; Royalty Pharma (RPRX) at 12.09% also sits in the top quartile.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

138.07%

ALNY
138.07%
Max
109.18%
Q3
6.23%
Median
-26.66%
Q1
-64.05%
Min
-167.77%

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

12.09%

Max
109.18%
RPRX
12.09%
Q3
6.23%
Median
-26.66%
Q1
-64.05%
Min
-167.77%
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their ROE against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Net Margin (TTM)

Both Alnylam Pharmaceuticals (ALNY) at 52.85% and Royalty Pharma (RPRX) at 25.70% keep an unusually large share of revenue as bottom-line profit — each net margin clears its industry’s benchmark range.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

52.85%

ALNY
52.85%
Max
18.05%
Q3
4.78%
Median
0.00%
Q1
-4.14%
Min
-17.05%

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

25.70%

RPRX
25.70%
Max
18.05%
Q3
4.78%
Median
0.00%
Q1
-4.14%
Min
-17.05%
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their net margin against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Operating Margin (TTM)

Both Alnylam Pharmaceuticals (ALNY) at 23.72% and Royalty Pharma (RPRX) at 81.32% convert sales into operating profit at a top-quartile rate, pointing to tighter cost discipline before financing and tax.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

23.72%

Max
83.12%
ALNY
23.72%
Q3
14.77%
Median
0.00%
Q1
-78.82%
Min
-207.40%

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

81.32%

Max
83.12%
RPRX
81.32%
Q3
14.77%
Median
0.00%
Q1
-78.82%
Min
-207.40%
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their operating margin against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Profitability Metrics

Profitability metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
ROE (TTM)138.07%12.09%
ROA (TTM)9.51%5.43%
Net Margin (TTM)52.85%25.70%
Operating Margin (TTM)23.72%81.32%
Gross Margin (TTM)77.28%99.79%

Growth

Revenue Growth

Alnylam Pharmaceuticals (ALNY) at 65.19% sits in the top revenue growth quartile, while Royalty Pharma (RPRX) at 5.06% is closer to the peer norm — faster top-line expansion for ALNY.

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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their Revenue Growth across different time periods.

EPS Growth

Only one side can be read here: Royalty Pharma (RPRX) reports EPS growth of 23.09%, ranked against its industry; Alnylam Pharmaceuticals (ALNY) has no EPS growth figure this period.

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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Revenue Growth (YoY)65.19%5.06%
Revenue Growth (3Y CAGR)52.98%2.06%
EPS Growth (YoY)--23.09%
EPS Growth (3Y CAGR)--161.10%

Financial Strength

Current Ratio (MRQ)

Alnylam Pharmaceuticals (ALNY) at 2.48 keeps current ratio within its industry’s typical mid-range, while Royalty Pharma (RPRX) at 1.29 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for RPRX.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

2.48

Max
25.13
Q3
12.13
Median
5.52
ALNY
2.48
Q1
2.47
Min
0.10

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

1.29

Max
25.13
Q3
12.13
Median
5.52
Q1
2.47
RPRX
1.29
Min
0.10
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their current ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Debt / Equity (MRQ)

Both Alnylam Pharmaceuticals (ALNY) at 0.83 and Royalty Pharma (RPRX) at 0.88 lean more heavily on debt funding than most peers, landing in the higher-leverage quartile of their industries.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

0.83

Max
1.42
ALNY
0.83
Q3
0.65
Median
0.15
Q1
0.02
Min
0.00

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

0.88

Max
1.42
RPRX
0.88
Q3
0.65
Median
0.15
Q1
0.02
Min
0.00
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their debt-to-equity ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Current Ratio (MRQ)2.481.29
Debt / Equity (MRQ)0.830.88
Net Debt / EBITDA-0.574.76

Dividends

Dividend Yield (TTM)

Alnylam Pharmaceuticals (ALNY) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Royalty Pharma (RPRX) reports a yield of 1.37%, ranking against industry peers normally.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

0.00%

ALNY
0.00%
Max
0.00%
Q3
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

1.37%

RPRX
1.37%
Max
0.00%
Q3
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their dividend yield against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Dividend Payout Ratio (TTM)

Alnylam Pharmaceuticals (ALNY) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Royalty Pharma (RPRX) reports a payout of 60.46%, ranking against industry peers normally.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

0.00%

ALNY
0.00%
Max
0.00%
Q3
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

60.46%

RPRX
60.46%
Max
0.00%
Q3
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their payout ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Dividend Metrics

Dividend metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
Dividend Yield (TTM)0.00%1.37%
Dividend Payout Ratio (TTM)0.00%60.46%

Valuation

P/E Ratio (TTM)

Alnylam Pharmaceuticals (ALNY) at 7.88 sits in the cheaper P/E ratio quartile, while Royalty Pharma (RPRX) at 43.99 sits in the richer quartile — a clear split in what investors pay for each dollar of trailing earnings.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

7.88

Max
85.34
Q3
43.46
Median
26.69
Q1
13.30
ALNY
7.88
Min
0.07

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

43.99

Max
85.34
RPRX
43.99
Q3
43.46
Median
26.69
Q1
13.30
Min
0.07
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their P/E ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

P/S Ratio (TTM)

On P/S ratio, both Alnylam Pharmaceuticals (ALNY) at 4.17 and Royalty Pharma (RPRX) at 14.79 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

4.17

Max
58.18
Q3
25.77
Median
7.30
ALNY
4.17
Q1
3.01
Min
0.01

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

14.79

Max
58.18
Q3
25.77
RPRX
14.79
Median
7.30
Q1
3.01
Min
0.01
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their P/S ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

P/B Ratio (MRQ)

On P/B ratio, both Alnylam Pharmaceuticals (ALNY) at 5.79 and Royalty Pharma (RPRX) at 4.39 are valued close to their industries’ norm against book — neither stands out from peers.

ALNY

Pharmaceuticals, Biotechnology & Life Sciences industry group

5.79

Max
13.53
Q3
6.54
ALNY
5.79
Median
3.25
Q1
1.69
Min
-5.59

RPRX

Pharmaceuticals, Biotechnology & Life Sciences industry group

4.39

Max
13.53
Q3
6.54
RPRX
4.39
Median
3.25
Q1
1.69
Min
-5.59
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Alnylam Pharmaceuticals (ALNY) vs. Royalty Pharma (RPRX): A comparison of their P/B ratio against the Pharmaceuticals, Biotechnology & Life Sciences industry group benchmark.

Valuation Metrics

Valuation metrics for Alnylam Pharmaceuticals (ALNY) and Royalty Pharma (RPRX)
MetricALNYRPRX
P/E Ratio (TTM)7.8843.99
P/S Ratio (TTM)4.1714.79
P/B Ratio (MRQ)5.794.39
Free Cash Flow Yield (TTM)1.57%-1.16%