3 Growth Stocks Set to Flourish

September 18, 2025 at 00:31 AM EDT

DUOL Cover Image

Growth is a hallmark of all great companies, but the laws of gravity eventually take hold. Those who rode the COVID boom and ensuing tech selloff in 2022 will surely remember that the market’s punishment can be swift and severe when trajectories fall.

Deciphering which businesses can sustain their high growth rates is a challenge for even the most seasoned professionals, which is why we started StockStory. Keeping that in mind, here are three growth stocks where the best is yet to come.

Duolingo (DUOL)

One-Year Revenue Growth: +39.5%

Founded by a Carnegie Mellon computer science professor and his Ph.D. student, Duolingo (NASDAQ: DUOL) is a mobile app helping people learn new languages.

Why Should You Buy DUOL?

Has the opportunity to boost monetization through new features and premium offerings as its monthly active users have grown by 36.5% annually over the last two years
Performance over the past three years shows its incremental sales were extremely profitable, as its annual earnings per share growth of 311% outpaced its revenue gains
DUOL is a free cash flow machine with the flexibility to invest in growth initiatives or return capital to shareholders, and its rising cash conversion increases its margin of safety

Duolingo is trading at $283 per share, or 40x forward EV/EBITDA. Is now the time to initiate a position? Find out in our full research report, it’s free.

CECO Environmental (CECO)

One-Year Revenue Growth: +15.7%

With roots dating back to 1869 and a focus on creating cleaner industrial operations, CECO Environmental (NASDAQ: CECO) provides technology and expertise that helps industrial companies reduce emissions, treat water, and improve energy efficiency across various sectors.

Why Is CECO a Top Pick?

Annual revenue growth of 18.6% over the past two years was outstanding, reflecting market share gains this cycle
Exciting sales outlook for the upcoming 12 months calls for 23% growth, an acceleration from its two-year trend
Adjusted operating profits increased over the last five years as the company gained some leverage on its fixed costs and became more efficient

At $49.50 per share, CECO Environmental trades at 38.7x forward P/E. Is now a good time to buy? See for yourself in our full research report, it’s free.

Progressive (PGR)

One-Year Revenue Growth: +21.5%

Starting as a small auto insurance company in 1937 with a pioneering focus on high-risk drivers, Progressive (NYSE: PGR) is a major auto, property, and commercial insurance provider that offers policies through independent agents, online platforms, and over the phone.

Why Is PGR a Good Business?

Net premiums earned surged by 20.3% annually over the past two years, reflecting strong market share gains this cycle
Balance sheet strength has increased this cycle as its 41.7% annual book value per share growth over the last two years was exceptional
Notable projected book value per share growth of 24.9% for the next 12 months hints at strong capital generation

Progressive’s stock price of $241.01 implies a valuation ratio of 4.1x forward P/B. Is now the right time to buy? Find out in our full research report, it’s free.

High-Quality Stocks for All Market Conditions

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3 Growth Stocks Set to Flourish

Duolingo (DUOL)

CECO Environmental (CECO)

Progressive (PGR)

High-Quality Stocks for All Market Conditions

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