Biogen (BIIB): Reassessing Valuation After Recent Share Price Recovery

Simply Wall St

If you have been tracking Biogen (BIIB) lately, the company’s shares have quietly gained 6% in the past month, recapturing some ground after a tough stretch. While there has not been a headline-grabbing event, this recent uptick could raise questions for investors: Are we seeing the start of a recovery, or is it just a temporary shift following a period of lackluster returns?

Taking a step back, Biogen’s performance over the past year has lagged with a 32% decline, and the past three years have not been much kinder. However, the short-term momentum has picked up recently, giving investors a reason to revisit the stock’s valuation and outlook. Aside from these price swings, company fundamentals have presented a mixed picture, with net income modestly improving but revenue dipping slightly in the latest annual figures.

After this stretch of losses and a recent rebound, is Biogen trading at an attractive price now, or is the market just catching up to its real long-term growth prospects?

Most Popular Narrative: 17.8% Undervalued

According to the community narrative, Biogen is trading below its estimated fair value, suggesting the stock could have significant upside if expectations are met over the next several years.

“Demand for Biogen's Alzheimer's therapy LEQEMBI is poised for structural long-term growth, supported by a rapidly aging global population and accelerating rates of mild cognitive impairment diagnoses facilitated by breakthroughs in blood-based biomarkers and expanding diagnostic infrastructure. These factors position Biogen to capture a larger patient pool and drive sustained revenue expansion.”

Curious why analysts see Biogen as a rare undervalued opportunity? The real story is in their bold projections for future earnings and margin expansion. Want to uncover the pivotal catalysts and the financial leap that could fuel this target? Do not miss the narrative that lays out the calculations, as there is more behind this number than you expect.

Result: Fair Value of $169.44 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, competitive pressures in Biogen’s MS business and setbacks for new product launches could quickly undermine the company’s recovery narrative.

Find out about the key risks to this Biogen narrative.

Another View: Discounted Cash Flow Model Perspective

Taking a different approach, our DCF model also points to Biogen trading below its estimated worth. This reinforces the previous view of potential upside. However, it is important to consider whether this model captures the risks associated with changing industry dynamics.

Look into how the SWS DCF model arrives at its fair value.
BIIB Discounted Cash Flow as at Aug 2025
Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Biogen for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover undervalued stocks based on their cash flows. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Build Your Own Biogen Narrative

If you have your own perspective or enjoy diving into the numbers, you can craft your unique take in just a few minutes. do it your way.

A great starting point for your Biogen research is our analysis highlighting 3 key rewards and 1 important warning sign that could impact your investment decision.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Valuation is complex, but we're here to simplify it.

Discover if Biogen might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.

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