Lantheus Holdings (LNTH) opened 2026 with Q1 revenue of US$377.3 million and basic EPS of US$1.83, alongside net income of US$118.4 million, setting a clear marker for the latest reporting period. The company has seen quarterly revenue move from US$372.8 million in Q1 2025 to US$377.3 million in Q1 2026, while basic EPS shifted from US$1.06 to US$1.83 over the same stretch. This gives investors a clear view of how the top and bottom lines are tracking. With trailing net margin sitting above last year’s level and a US$84.1 million one off gain in the mix, this set of results gives investors plenty to weigh up around the quality and sustainability of current profitability.

See our full analysis for Lantheus Holdings.

With the headline numbers on the table, the next step is to see how these results line up against the prevailing stories around Lantheus, and where the data starts to challenge those narratives.

Margins Lifted by 18% Net Profit Level

• Over the last 12 months, Lantheus converted US$1.5b of revenue into US$279.0 million of net income, giving an 18% net margin compared with 16.5% a year earlier.
• What stands out for the bullish narrative is that this higher margin sits alongside multi year earnings growth of about 48% per year over five years, yet includes a US$84.1 million one off gain that flatters profitability, so investors need to separate:
  • Multi year growth and the 18% margin that support bulls who expect earnings to keep expanding around 13.3% per year.
  • The one off gain, which makes recent margins look stronger than the underlying business that bullish forecasts for higher future margins and earnings are based on.

Bulls point to strong historical growth and higher margins, but the one off gain means the underlying earnings power needs a closer look before leaning too hard on the optimistic case. 🐂 Lantheus Holdings Bull Case

Valuation Gap: US$91 Price vs DCF Fair Value

• The stock trades at US$91 per share, which is well below the DCF fair value of about US$189.91 and also sits on a 21.2x P/E compared with 22.8x for peers and 23.9x for the wider US Medical Equipment group.
• Critics in the bearish narrative argue that pricing pressure and reliance on a few products could limit earnings, and the current numbers give them some data to lean on:
  • Revenue is forecast to grow about 7.5% per year, below the 11.4% forecast for the broader US market, which bears see as a sign that a discount to the 98.31 analyst price target might be justified.
  • The bearish view also highlights that earnings are expected to grow around 13.3% per year, still behind the 16.4% US market forecast, which could cap how quickly any valuation gap to both the DCF fair value and analyst targets might close.

Skeptics focus on slower forecast growth and product concentration to argue that a lower P/E and a gap to DCF fair value can persist. 🐻 Lantheus Holdings Bear Case

EPS Swing and One Off Gain in Context

• Basic EPS for Q1 2026 came in at US$1.83 versus US$0.82 in Q4 2025 and US$0.41 in Q3 2025, while trailing twelve month EPS reached US$4.20 compared with US$3.46 just one quarter earlier.
• The consensus style narrative points to both growth potential and concentration risk, and the reported figures capture that mix clearly:
  • Trailing twelve month net income of US$279.0 million compares with US$233.6 million a year earlier, aligning with the view that the business has been growing earnings over time.
  • At the same time, that trailing figure is lifted by the US$84.1 million one off gain, which means part of the recent EPS jump is not from repeatable operations, echoing concerns about how stable earnings will be if key products face more pricing pressure.

Next Steps

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for Lantheus Holdings on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

Mixed messages in the numbers and narratives so far? Use this as a starting point, check the figures for yourself, and weigh both the potential rewards and the risks highlighted by investors through 4 key rewards and 1 important warning sign

See What Else Is Out There

Forecast revenue and earnings growth for Lantheus sit below broader US market expectations, while a significant one off gain raises questions about how durable current margins are.

If you are concerned about growth that trails the market and want companies where price and fundamentals may be better aligned, start comparing with 51 high quality undervalued stocks

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.