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3 Profitable Stocks with Questionable Fundamentals

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Not all profitable companies are built to last - some rely on outdated models or unsustainable advantages. Just because a business is in the green today doesn’t mean it will thrive tomorrow.

Profits are valuable, but they’re not everything. At StockStory, we help you identify the companies that have real staying power. Keeping that in mind, here are three profitable companies to steer clear of and a few better alternatives.

Northern Trust (NTRS)

Trailing 12-Month GAAP Operating Margin: 35.7%

Founded in 1889 during Chicago's post-Great Fire rebuilding boom, Northern Trust (NASDAQ: NTRS) provides wealth management, asset servicing, and banking solutions to corporations, institutions, families, and high-net-worth individuals globally.

Why Do We Think Twice About NTRS?

  1. Sales trends were unexciting over the last five years as its 6.9% annual growth was below the typical financials company

Northern Trust’s stock price of $171.40 implies a valuation ratio of 14.1x forward P/E. If you’re considering NTRS for your portfolio, see our FREE research report to learn more.

Berkshire Hathaway (BRK.A)

Trailing 12-Month GAAP Operating Margin: 27.2%

Led by legendary investor Warren Buffett since 1965, transforming it from a struggling textile manufacturer into a corporate giant, Berkshire Hathaway (NYSE: BRK.A) is a diversified holding company that owns businesses across insurance, railroads, utilities, manufacturing, retail, and services sectors.

Why Does BRK.A Worry Us?

  1. Large revenue base makes it harder to increase sales quickly, and its annual revenue growth of 4.2% over the last five years was below our standards for the financials sector
  2. Earnings growth underperformed the sector average over the last two years as its EPS grew by just 7% annually

At $754,798 per share, Berkshire Hathaway trades at 22.3x forward P/E. Read our free research report to see why you should think twice about including BRK.A in your portfolio.

Liberty Energy (LBRT)

Trailing 12-Month GAAP Operating Margin: 1.3%

Operating approximately 40 active fleets across North America's most productive shale basins, Liberty Energy (NYSE: LBRT) provides hydraulic fracturing services that help oil and gas companies extract resources from shale formations.

Why Is LBRT Not Exciting?

  1. Gross margin of 23.3% is below its competitors, leaving less money to invest in exploration and production
  2. Low free cash flow margin of 1.9% for the last five years gives it little breathing room, constraining its ability to self-fund growth or return capital to shareholders

Liberty Energy is trading at $19.51 per share, or 81.7x forward P/E. Check out our free in-depth research report to learn more about why LBRT doesn’t pass our bar.

Stocks We Like More

ALSO WORTH WATCHING: Top 5 Momentum Stocks. The best time to own a great stock is when the market is finally noticing it. These aren’t just high-quality businesses. Something is happening with them right now. Elite fundamentals meet near-term momentum — both boxes checked at the same time.

Find out which stocks our AI platform is flagging this week. See this week’s Strong Momentum stocks — FREE. Get Our Strong Momentum Stocks for Free HERE.

Stocks that made our list in 2020 include now familiar names such as Nvidia (+1,460% between June 2020 and June 2025) as well as under-the-radar businesses like the once-small-cap company Comfort Systems (+1,154% between June 2020 and June 2025). Find your next big winner with StockStory today.

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