Growth is oxygen. But when it evaporates, the consequences can be severe - ask anyone who bought Cisco in the Dot-Com Bubble or newer investors who lived through the 2020 to 2022 COVID cycle.
The risks that can come from buying these assets is precisely why we started StockStory - to isolate the long-term winners from the losers so you can invest with confidence. That said, here are two growth stocks where the best is yet to come and one whose momentum may slow.
One Growth Stock to Sell:
Repligen (RGEN)
One-Year Revenue Growth: +16.4%
With over 13 strategic acquisitions since 2012 to build its comprehensive bioprocessing portfolio, Repligen (NASDAQ: RGEN) develops and manufactures specialized technologies that improve the efficiency and flexibility of biological drug manufacturing processes.
Why Do We Think RGEN Will Underperform?
- Modest revenue base of $738.3 million gives it less fixed cost leverage and fewer distribution channels than larger companies
- Efficiency has decreased over the last five years as its adjusted operating margin fell by 18.3 percentage points
- Waning returns on capital from an already weak starting point displays the inefficacy of management’s past and current investment decisions
At $115.10 per share, Repligen trades at 60.8x forward P/E. If you’re considering RGEN for your portfolio, see our FREE research report to learn more.
Two Growth Stocks to Watch:
Palo Alto Networks (PANW)
One-Year Revenue Growth: +15.4%
Founded in 2005 by security visionary Nir Zuk who sought to reimagine firewall technology, Palo Alto Networks (NASDAQ: PANW) provides AI-powered cybersecurity platforms that protect organizations' networks, clouds, and endpoints from sophisticated threats.
Why Could PANW Be a Winner?
- Exciting sales outlook for the upcoming 12 months calls for 28.1% growth, an acceleration from its two-year trend
- Fast payback periods on sales and marketing expenses allow the company to invest heavily and onboard many customers concurrently
- Strong free cash flow margin of 36% enables it to reinvest or return capital consistently
Palo Alto Networks is trading at $167.89 per share, or 9.2x forward price-to-sales. Is now the time to initiate a position? Find out in our full research report, it’s free.
FTAI Aviation (FTAI)
One-Year Revenue Growth: +44.5%
With a focus on the CFM56 engine that powers Boeing and Airbus’s planes, FTAI Aviation (NASDAQ: FTAI) sells, leases, maintains, and repairs aircraft engines.
Why Should You Buy FTAI?
- Impressive 46.3% annual revenue growth over the last two years indicates it’s winning market share this cycle
- Earnings per share grew by 43.8% annually over the last two years, massively outpacing its peers
- Negative free cash flow margin has improved over the last five years, showing the company is one step closer to financial self-sufficiency
FTAI Aviation’s stock price of $237.83 implies a valuation ratio of 35.8x forward P/E. Is now a good time to buy? See for yourself in our full research report, it’s free.
Stocks We Like Even More
ONE MORE THING: Top 5 Growth Stocks. The biggest stock winners almost always had one thing in common before they ran. Revenue growing like crazy. Meta. CrowdStrike. Broadcom. Our AI flagged all three. They returned 315%, 314%, and 455%, respectively.
Find out which 5 stocks it's flagging for this month — FREE. Get Our Top 5 Growth Stocks for Free HERE.
Stocks that made our list in 2020 include now familiar names such as Nvidia (+1,326% between June 2020 and June 2025) as well as under-the-radar businesses like the once-micro-cap company Kadant (+351% five-year return). Find your next big winner with StockStory today.
