The stocks in this article are all trading near their 52-week highs. This strength often reflects positive developments such as new product launches, favorable industry trends, or improved financial performance.

However, not all companies with momentum are long-term winners, and many investors have lost money by following short-term trends. Keeping that in mind, here is one stock with the fundamentals to back up its performance and two that may correct.

Two Stocks to Sell:

REV Group (REVG)

One-Month Return: +15.3%

Offering the first full-electric North American fire truck, REV (NYSE: REVG) manufactures and sells specialty vehicles.

Why Are We Hesitant About REVG?

1. Backlog growth averaged a weak 3.7% over the past two years, suggesting it may need to tweak its product roadmap or go-to-market strategy
2. Competitive supply chain dynamics and steep production costs are reflected in its low gross margin of 12.5%
3. Operating margin of 3.9% falls short of the industry average, and the smaller profit dollars make it harder to react to unexpected market developments

REV Group’s stock price of $68.27 implies a valuation ratio of 18x forward P/E. To fully understand why you should be careful with REVG, check out our full research report (it’s free).

Regeneron (REGN)

One-Month Return: +2.1%

Founded by scientists who wanted to build a company where science could thrive, Regeneron Pharmaceuticals (NASDAQ: REGN) develops and commercializes medicines for serious diseases, with key products treating eye conditions, allergic diseases, cancer, and other disorders.

Why Does REGN Worry Us?

1. Large revenue base makes it harder to increase sales quickly, and its annual revenue growth of 4.3% over the last two years was below our standards for the healthcare sector
2. Efficiency has decreased over the last five years as its adjusted operating margin fell by 23.8 percentage points
3. Eroding returns on capital suggest its historical profit centers are aging

Regeneron is trading at $768.65 per share, or 17.6x forward P/E. Dive into our free research report to see why there are better opportunities than REGN.

One Stock to Watch:

Flowserve (FLS)

One-Month Return: +2.7%

Manufacturing the largest pump ever built for nuclear power generation, Flowserve (NYSE: FLS) manufactures and sells flow control equipment for various industries.

Why Are We Positive On FLS?

1. Operating profits and efficiency rose over the last five years as it benefited from some fixed cost leverage
2. Incremental sales over the last two years have been highly profitable as its earnings per share increased by 23.6% annually, topping its revenue gains
3. Free cash flow margin expanded by 5 percentage points over the last five years, providing additional flexibility for investments and share buybacks/dividends

At $73.74 per share, Flowserve trades at 18.9x forward P/E. Is now the time to initiate a position? See for yourself in our in-depth research report, it’s free.

Stocks We Like Even More

If your portfolio success hinges on just 4 stocks, your wealth is built on fragile ground. You have a small window to secure high-quality assets before the market widens and these prices disappear.

Don’t wait for the next volatility shock. Check out our Top 5 Growth Stocks for this month. This is a curated list of our High Quality stocks that have generated a market-beating return of 244% over the last five years (as of June 30, 2025).

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-small-cap company Exlservice (+354% five-year return). Find your next big winner with StockStory today.