While profitability is essential, it doesn’t guarantee long-term success. Some companies that rest on their margins will lose ground as competition intensifies - as Jeff Bezos said, "Your margin is my opportunity".

A business making money today isn’t necessarily a winner, which is why we analyze companies across multiple dimensions at StockStory. Keeping that in mind, here is one profitable company that leverages its financial strength to beat the competition and two that may face some trouble.

Trailing 12-Month GAAP Operating Margin: 11.1%

Known for the creation of iconic toys such as Barbie and Hotwheels, Mattel (NASDAQ:MAT) is a global children's entertainment company specializing in the design and production of consumer products.

Why Should You Dump MAT?

Muted 3.1% annual revenue growth over the last five years shows its demand lagged behind its consumer discretionary peers

Lacking free cash flow generation means it has few chances to reinvest for growth, repurchase shares, or distribute capital

Eroding returns on capital from an already low base indicate that management’s recent investments are destroying value

Mattel is trading at $15.03 per share, or 11.9x forward P/E. If you’re considering MAT for your portfolio, see our FREE research report to learn more.

Trailing 12-Month GAAP Operating Margin: 1.6%

The developer of the first blade-type automotive fuse, Littelfuse (NASDAQ:LFUS) provides electrical protection and control components for the automotive, industrial, electronics, and telecommunications industries.

Why Does LFUS Give Us Pause?

Sales stagnated over the last two years and signal the need for new growth strategies

Falling earnings per share over the last two years has some investors worried as stock prices ultimately follow EPS over the long term

Waning returns on capital from an already weak starting point displays the inefficacy of management’s past and current investment decisions

Littelfuse’s stock price of $331.19 implies a valuation ratio of 25.8x forward P/E. To fully understand why you should be careful with LFUS, check out our full research report (it’s free).

Trailing 12-Month GAAP Operating Margin: 8.5%

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?

Gross margin of 31.2% is reasonable for the industry and allows for steady investments in marketing and R&D

Share buybacks catapulted its annual earnings per share growth to 29.8%, which outperformed its revenue gains over the last two years

Free cash flow margin increased by 3.7 percentage points over the last five years, giving the company more capital to invest or return to shareholders

At $73.87 per share, Flowserve trades at 18x forward P/E. Is now a good time to buy? Find out in our full research report, it’s free.

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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 Comfort Systems (+782% five-year return). Find your next big winner with StockStory today.