Bull case
The bull case prices ALNY at 42x on FY1 earnings, assuming continued execution and no meaningful deceleration in the core business.
Wall Street verdict, consensus price target, and analyst rating breakdown — everything needed to frame the risk/reward at today's price.
Three scenarios for where ALNY stock could go
The bull case prices ALNY at 42x on FY1 earnings, assuming continued execution and no meaningful deceleration in the core business.
This is close to how the market is already pricing ALNY — at roughly 45x forward earnings. No dramatic re-rating needed, just steady execution on the core business.
The bear case reflects a scenario where earnings shortfalls or multiple compression combine to materially reduce the stock from its current level.
Not financial advice. Model confidence reflects internal scenario assumptions, not a guarantee of returns. Past performance does not predict future results.

Alnylam Pharmaceuticals is a biopharmaceutical company that develops and commercializes RNA interference (RNAi) therapeutics for rare genetic diseases. It generates revenue primarily from sales of its approved RNAi drugs — ONPATTRO, GIVLAARI, OXLUMO, and others — targeting conditions like hereditary transthyretin amyloidosis, acute hepatic porphyria, and primary hyperoxaluria. The company's key advantage is its pioneering RNAi technology platform and intellectual property estate, which creates a significant barrier to entry in the RNAi therapeutics space.
Quarterly beat-or-miss track record against analyst estimates, plus forward revenue and EPS outlook for the next two fiscal years.
| Quarter | EPS (Actual / Est) | EPS Surprise | Revenue (Actual / Est) | Rev Surprise |
|---|---|---|---|---|
| Q3 2025 | $0.32/$-0.54 | +158.9% | $774M/$663M | +16.7% |
| Q4 2025 | $2.90/$0.56 | +416.9% | $1.2B/$959M | +30.2% |
| Q1 2026 | $0.82/$1.16 | -29.3% | $1.1B/$1.1B | -4.5% |
| Q2 2026 | $1.51/$0.90 | +68.7% | $1.2B/$1.1B | +4.6% |
ALNY beat EPS estimates in 3 of 4 tracked quarters. A strong delivery record supports forward estimate credibility.
Product and geographic revenue mix from the latest annual disclosure, with year-over-year growth by segment.
Latest annual revenue by segment or product family
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Latest annual revenue by reported region
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Current multiples compared to the S&P 500, the company's sector, and its own five-year average.
Fair value est. $106 — implies -64.2% from today's price.
| Metric | ALNY | S&P 500 | Healthcare | 5Y Avg ALNY |
|---|---|---|---|---|
| Forward PE | 45.0x | 19.1x+136% | 18.8x+139% | — |
| Trailing PE | 129.2x | 25.1x+415% | 22.2x+482% | 170.7x-24% |
| PEG Ratio | — | 1.72x | 1.53x | — |
| EV/EBITDA | 71.4x | 15.2x+369% | 14.0x+409% | 95.4x-25% |
| Price/FCF | 86.3x | 21.1x+309% | 18.6x+365% | 115.1x-25% |
| Price/Sales | 10.8x | 3.1x+246% | 2.8x+286% | 18.5x-42% |
| Dividend Yield | — | 1.87% | 1.42% | — |
Forward P/E and PEG reflect analyst consensus estimates. Historical averages use trailing ratios where forward data is unavailable.S&P 500 and sector benchmarks both use trailing median P/E — similar readings indicate the broader index and sector are priced alike.
Open valuation toolALNY generates $641M in free cash flow at a 15.0% margin — 33.4% ROIC signals a durable competitive advantage.
Revenue, margins, and cash generation
ROIC, leverage, and debt serviceability
* Elevated by buyback-compressed equity — compare ROIC (33.4%) for an undistorted picture of capital efficiency.
How capital is returned to owners
All figures from the trailing twelve months. ROIC uses invested capital (equity + net debt). ROE marked * where buyback-compressed equity base may inflate the figure.
Open full ratios pageKey factors that could pressure the stock price, compress the multiple, or weigh on future results.
AI analysis · updated April 11, 2026
Alnylam’s stock has historically suffered steep drawdowns during systemic shocks, averaging a 35% decline during Growth & Demand Scare events and 25% across 15 major shocks versus the S&P 500’s 16%. Notable downturns include the 2008 Global Financial Crisis, 2020 COVID‑19 crash, and 2015‑16 China Devaluation/Global Growth Scare, indicating high sensitivity to macro‑economic turbulence.
The company is exposed to U.S. government pricing programs such as the 340B Drug Pricing Program. Failure to meet complex, frequently changing requirements could trigger substantial fines, penalties, and sanctions, jeopardizing financial stability and eroding margins.
Alnylam faces fierce competition from larger pharma with monoclonal antibodies, gene therapies, and small‑molecule drugs. Manufacturing RNAi medicines is scientifically complex and costly, and the TTR franchise has limited late‑stage catalysts expected in 2026, raising the risk of revenue erosion if Phase I studies fail.
Analysts warn of sequential revenue declines and diminishing growth prospects, with management forecasting lower Q1 2026 growth versus Q4 2025. Gross margins have modestly declined due to royalty escalations and anticipated net price reductions for Amvuttra, while collaboration revenue is expected to drop in 2026 without a non‑recurring milestone payment.
While some analysts maintain a Buy consensus, a significant portion recommend Hold or Sell, citing a weak risk/reward profile and concerns about operational efficiency. The stock trades below its estimated fair value, but this is offset by the overall risk profile.
These are risk mechanisms, not predictions. The key question is which would force a cut to earnings estimates or a lower multiple than the market currently prices in.
Structural drivers behind the upside case and why the stock could outperform over the next 12 months.
AI analysis · updated April 11, 2026
Alnylam is projected to generate nearly $2.99 billion in combined net product revenues in 2025, an 81% year‑over‑year increase. The Rare franchise alone contributed about $500 million, with key products Givlaari and Oxlumo driving steady double‑digit growth.
The company is scaling its ATTR‑CM programs and advancing a broader RNAi pipeline into high‑prevalence indications. R&D and SG&A expenses are rising to support these efforts, positioning Alnylam for future product opportunities and higher profitability.
Alnylam’s TTR franchise has shown robust growth and outperformed rivals, with Amvuttra remaining the only therapy with proven superior efficacy. The firm also benefits from a large pool of underdiagnosed patients, creating a long‑term growth runway.
The company maintains healthy gross margins and expanding operating leverage, while its return on equity exceeds 69%, reflecting effective management and profitability.
A majority of analysts covering Alnylam hold a positive outlook, with consensus ratings of "Buy" or "Strong Buy".
A real bull case compounds — each driver matters most when it strengthens margins, supports capital returns, and keeps the company above the market's minimum growth bar simultaneously.
52-week range context and price returns across multiple time horizons. Dividend contribution is shown separately in the Capital Return section.
Range context matters because valuation compression and earnings misses rarely hit from the same starting point. A stock already far below its high can still fall, but it is no longer carrying the same embedded optimism as one pressing a fresh peak.
Valuation, growth, and margin comparison against the closest publicly traded peers for this company.
| Company | Mkt Cap | Fwd PE | Rev Grw | Margin | Rating | Upside |
|---|---|---|---|---|---|---|
ALN ALNY Alnylam Pharmaceuticals, Inc. | $40.2B | 45.0x | +33.2% | 13.5% | Buy | +48.0% |
ION IONS Ionis Pharmaceuticals, Inc. | $12.4B | — | +15.0% | -30.9% | Buy | +42.6% |
ARW ARWR Arrowhead Pharmaceuticals, Inc. | $10.5B | — | +0.2% | 18.5% | Buy | +8.4% |
NTL NTLA Intellia Therapeutics, Inc. | $1.5B | — | +8.5% | — | Buy | +56.9% |
BEA BEAM Beam Therapeutics Inc. | $3.0B | — | -1.2% | -57.2% | Buy | +41.3% |
MRN MRNA Moderna, Inc. | $18.5B | — | -17.9% | -143.6% | Hold | -22.9% |
This peer comparison reflects companies with similar business models, product lines, or market positioning, supplemented by industry grouping when direct matches are limited.
Common questions answered from live analyst data and company financials.
Alnylam Pharmaceuticals, Inc. (ALNY) is rated Buy by Wall Street analysts as of 2026. Of 52 analysts covering the stock, 39 rate it Buy or Strong Buy, 12 rate it Hold, and 1 rate it Sell or Strong Sell. The consensus 12-month price target is $446, implying +48.0% from the current price of $301.
The Wall Street consensus price target for ALNY is $446 based on 52 analyst estimates. The high-end target is $530 (+76.0% from today), and the low-end target is $351 (+16.6%). The base case model target is $301.
ALNY trades at 45.0x times forward earnings. The stock trades at a notable premium to the broad market, which is typical for businesses with strong free cash flow and above-average growth expectations. Based on current multiples versus the peer group, the relative model signals significantly overvalued. Whether the stock is over or undervalued ultimately depends on whether consensus earnings estimates are achievable.
The primary risks for ALNY in 2026 are: (1) Market Volatility — Alnylam’s stock has historically suffered steep drawdowns during systemic shocks, averaging a 35% decline during Growth & Demand Scare events and 25% across 15 major shocks versus the S&P 500’s 16%. (2) Regulatory & Pricing Risks — The company is exposed to U. (3) Competitive & Pipeline Uncertainty — Alnylam faces fierce competition from larger pharma with monoclonal antibodies, gene therapies, and small‑molecule drugs. Each factor has the potential to pressure earnings or compress the stock's valuation multiple.
Analyst consensus estimates ALNY will report consensus revenue of $5.7B (+33.2% year-over-year) and EPS of $7.35 (+76.0% year-over-year) for the upcoming fiscal year. The following year, analysts project $7.7B in revenue.
Alnylam Pharmaceuticals, Inc. is expected to report its next earnings on approximately 2026-05-07. Consensus expects EPS of $1.50 and revenue of $1.1B. Over recent quarters, ALNY has beaten EPS estimates 83% of the time.
Alnylam Pharmaceuticals, Inc. (ALNY) generated $641M in free cash flow over the trailing twelve months — a free cash flow margin of 15.0%. ALNY returns capital to shareholders through and share repurchases ($0 TTM).