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Chart to Watch: Biotech bounces back

Optimism is returning to the biotech space as clinical successes, a pick up in M&A activity, and easing regulatory concerns have driven a substantial performance turnaround.

Daniel Lyons, PhD, CFA

Portfolio Manager | Research Analyst


12 Sep 2025
2 minute read

Key takeaways:

  • While biotech stocks saw a steady drawdown from the U.S. presidential election through early April, the Nasdaq Biotechnology Index has fully recovered from its post-election low and development stage biotech stocks are up over 75% since April 8.
  • Biotech stocks have gained traction due to positive clinical trial data, new product launches, and a strong pace of FDA drug approvals. Increasing merger and acquisition (M&A) activity and the prospect of lower interest rates also bode well for the sector.
  • We believe durable performance drivers are in place as policy overhangs on the sector lift and innovation and medical advances continue.
Drawdown Recovery Full period
Nasdaq Biotechnology Index -21.4% 30.5% 2.6%
S&P Biotechnology Select Industry Index -30.6% 37.2% -4.7%
LifeSci Biotechnology Clinical Trials Index -52.5% 75.8% -16.5%

Source: Bloomberg. Cumulative total return as of 11 September 2025. Drawdown = U.S. election on 5 November 2024 through April low on 8 April 2025. Recovery = 8 April 2025 through 11 September 2025. Full period = 5 November 2024 through 11 September 2025. 

Though we remain mindful that there could be near-term volatility as drug pricing policy is finalized, we believe the most acute phase of policy uncertainty for biotech may be behind us. And, given the recent uptick in M&A activity, the industry seems to agree. With Big Pharma facing numerous patent expirations in coming years, we’d expect this activity to continue, particularly in a more accommodative interest rate environment. It’s worth noting that, in the past, a resurgence of M&A activity has been a catalyst for recoveries from biotech downturns. Also of promise is the fact that the FDA has approved 36 new medicines in 2025, on pace with 2024, and positive clinical trial data and product launches highlight that the biotech sector remains a hub of innovation.

 

-Daniel Lyons, PhD, CFA, Portfolio Manager

NASDAQ Biotechnology Index is a stock market index made up of securities of NASDAQ-listed companies classified according to the Industry Classification Benchmark as either the Biotechnology or the Pharmaceutical industry.
S&P Biotechnology Select Industry Index represents the biotechnology sub-industry portion of the S&P Total Markets Index. The S&P TMI tracks all the U.S. common stocks listed on the NYSE, AMEX, NASDAQ National Market and NASDAQ Small Cap exchanges. The Biotech Index is an equal weighted market cap index.
LifeSci Biotechnology Clinical Trials Index is an equal-weighted index comprised on US-listed biotechnology stocks with a lead product in human clinical trials but not yet approved for marketing. The index is reconstituted semi-annually and is provided by LifeSci Index Partners, LLC.

IMPORTANT INFORMATION

Equity securities are subject to risks including market risk. Returns will fluctuate in response to issuer, political and economic developments.
Health care industries are subject to government regulation and reimbursement rates, as well as government approval of products and services, which could have a significant effect on price and availability, and can be significantly affected by rapid obsolescence and patent expirations.
Volatility measures risk using the dispersion of returns for a given investment.

These are the views of the author at the time of publication and may differ from the views of other individuals/teams at Janus Henderson Investors. References made to individual securities do not constitute a recommendation to buy, sell or hold any security, investment strategy or market sector, and should not be assumed to be profitable. Janus Henderson Investors, its affiliated advisor, or its employees, may have a position in the securities mentioned.

 

Past performance does not predict future returns. The value of an investment and the income from it can fall as well as rise and you may not get back the amount originally invested.

 

The information in this article does not qualify as an investment recommendation.

 

There is no guarantee that past trends will continue, or forecasts will be realised.

 

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