Assessing Apellis Pharmaceuticals (APLS) Valuation Following Recent Share Price Weakness

Simply Wall St

Apellis Pharmaceuticals (APLS) stock has seen some shifts lately, catching the interest of market watchers who are curious about how its story might unfold. Investors are weighing recent price moves against fundamentals as they assess what comes next.

See our latest analysis for Apellis Pharmaceuticals.

Apellis Pharmaceuticals’ share price has dipped 19.5% over the last month and is down 40.5% year-to-date, reflecting fading momentum as investors react to shifting risk sentiment. The company’s 1-year total shareholder return stands at -31.9%, extending a multi-year trend of underperformance.

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With shares trading well below analyst price targets and recent returns lagging, the key question emerges: Is Apellis Pharmaceuticals undervalued at current levels, or is the market already factoring in its future growth prospects?

Most Popular Narrative: 44.2% Undervalued

Apellis Pharmaceuticals’ most widely followed valuation narrative assigns a fair value well above its recent closing price, highlighting a striking gap between market sentiment and long-term projections. This disconnect is shaped by forward-looking assumptions about both product pipeline progress and market penetration.

The recent FDA label expansion for EMPAVELI into rare kidney diseases (C3G and IC-MPGN), along with active plans to launch and pursue additional indications (FSGS and DGF), positions Apellis to access larger patient pools and accelerate long-term topline growth. This growth is driven by the increasing prevalence of rare and age-associated diseases. This is likely to result in higher future revenues and market diversification.

Read the complete narrative.

Want to unpack the formula behind this bullish outlook? There is a set of daring growth and profitability forecasts included in the model, with significant expectations for future market wins and product uptake. Curious how these bold assumptions stack up against recent financial realities? See which numbers are moving the fair value needle.

Result: Fair Value of $35.39 (UNDERVALUED)

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

However, slowing adoption of key products and continued margin pressures could challenge the optimistic outlook for Apellis Pharmaceuticals’ future growth trajectory.

Find out about the key risks to this Apellis Pharmaceuticals narrative.

Another View: Market Ratios Send a Different Signal

While some models see Apellis Pharmaceuticals as undervalued, current market ratios paint a more cautionary picture. The company is trading at a price-to-earnings ratio of 55.5x, which is much higher than both the US biotech industry average of 17.4x and its fair ratio of 33.4x. This significant gap highlights increased valuation risk if market expectations shift.

See what the numbers say about this price — find out in our valuation breakdown.

NasdaqGS:APLS PE Ratio as at Nov 2025

Build Your Own Apellis Pharmaceuticals Narrative

If these perspectives do not reflect your own or you would rather draw your own conclusions, you can analyze the data and shape your narrative in just a few minutes. Do it your way

A great starting point for your Apellis Pharmaceuticals research is our analysis highlighting 3 key rewards and 2 important warning signs 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 Apellis Pharmaceuticals 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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