3 Profitable Stocks with Questionable Fundamentals

Even if a company is profitable, it doesn’t always mean it’s a great investment. Some struggle to maintain growth, face looming threats, or fail to reinvest wisely, limiting their future potential.

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 are three profitable companies to avoid and some better opportunities instead.

Greenbrier (GBX)

Trailing 12-Month GAAP Operating Margin: 8.7%

Having designed the industry’s first double-decker railcar in the 1980s, Greenbrier (NYSE:GBX) supplies the freight rail transportation industry with railcars and related services.

Why Does GBX Worry Us?

Declining unit sales over the past two years imply it may need to invest in improvements to get back on track Competitive supply chain dynamics and steep production costs are reflected in its low gross margin of 14.1% Cash-burning history makes us doubt the long-term viability of its business model

Greenbrier is trading at $47.93 per share, or 0.6x forward price-to-sales. Read our free research report to see why you should think twice about including GBX in your portfolio, it’s free.

MillerKnoll (MLKN)

Trailing 12-Month GAAP Operating Margin: 9.6%

Created through the 2021 merger of industry icons Herman Miller and Knoll, MillerKnoll (NASDAQ:MLKN) designs, manufactures, and distributes interior furnishings for offices, healthcare facilities, educational settings, and homes worldwide.

Why Are We Hesitant About MLKN?

1.4% annual revenue growth over the last two years was slower than its business services peers Earnings per share fell by 7.9% annually over the last five years while its revenue grew, partly because it diluted shareholders Ability to fund investments or reward shareholders with increased buybacks or dividends is restricted by its weak free cash flow margin of 2.4% for the last five years

MillerKnoll’s stock price of $16.48 implies a valuation ratio of 8.4x forward P/E. To fully understand why you should be careful with MLKN, check out our full research report (it’s free).

Encore Capital Group (ECPG)

Trailing 12-Month GAAP Operating Margin: 36.8%

Operating in the often misunderstood world of debt collection since 1999, Encore Capital Group (NASDAQ:ECPG) purchases portfolios of defaulted consumer debt at deep discounts and works with individuals to recover these obligations while helping them toward financial recovery.

Why Are We Cautious About ECPG?

Sales trends were unexciting over the last five years as its 2.6% annual growth was below the typical financials company Earnings per share lagged its peers over the last five years as they only grew by 3.7% annually High net-debt-to-EBITDA ratio of 5× could force the company to raise capital on unfavorable terms if market conditions deteriorate

Story Continues

At $80.30 per share, Encore Capital Group trades at 6.6x forward P/E. Dive into our free research report to see why there are better opportunities than ECPG.

High-Quality Stocks for All Market Conditions

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

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