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.

Profits are valuable, but they’re not everything. At StockStory, we help you identify the companies that have real staying power. That said, here are two profitable companies that generate reliable profits without sacrificing growth and one that may struggle to keep up.

One Stock to Sell:

European Wax Center (EWCZ)

Trailing 12-Month GAAP Operating Margin: 20.8%

Founded by two siblings, European Wax Center (NASDAQ: EWCZ) is a beauty and waxing salon chain specializing in professional wax services and skincare products.

Why Do We Think EWCZ Will Underperform?

1. Disappointing same-store sales over the past two years show customers aren’t responding well to its product selection and in-store experience
2. Free cash flow margin is forecasted to shrink by 5.1 percentage points in the coming year, suggesting the company will consume more capital to keep up with its competitors
3. Shrinking returns on capital from an already weak position reveal that neither previous nor ongoing investments are yielding the desired results

European Wax Center’s stock price of $5.79 implies a valuation ratio of 10.2x forward P/E. Read our free research report to see why you should think twice about including EWCZ in your portfolio.

Two Stocks to Buy:

Microsoft (MSFT)

Trailing 12-Month GAAP Operating Margin: 46.7%

Originally named "Micro-soft" for microcomputer software when founded in 1975, Microsoft (NASDAQ: MSFT) is a global technology company that develops software, cloud services, devices, and AI solutions for consumers, businesses, and organizations worldwide.

Why Will MSFT Beat the Market?

1. Microsoft is one of the great brands not just in tech but all of business. It produces mission-critical software and bundles it together, resulting in cream-of-the-crop gross margins.
2. The company's elite unit economics lead to robust profit margins that improve over time. This speaks to the scale advantages and operating efficiency across its diverse portfolio, which spans everything from Office and Azure to Minecraft.
3. Microsoft has a virtuous cycle of returns. Its dominant market position enables it to generate strong free cash flow, and it reinvests these funds into promising ventures that further strengthen its competitive moat.

Microsoft is trading at $373.40 per share, or 21.3x forward price-to-earnings. Is now the time to initiate a position? See for yourself in our in-depth research report, it’s free.

Comfort Systems (FIX)

Trailing 12-Month GAAP Operating Margin: 14.4%

Formed through the merger of 12 companies, Comfort Systems (NYSE: FIX) provides mechanical and electrical contracting services.

Why Are We Backing FIX?

1. Backlog has averaged 47.6% growth over the past two years, showing it has a pipeline of unfulfilled orders that will support revenue in the future
2. Free cash flow margin jumped by 6.1 percentage points over the last five years, giving the company more resources to pursue growth initiatives, repurchase shares, or pay dividends
3. Returns on capital are climbing as management makes more lucrative bets

At $1,422 per share, Comfort Systems trades at 38.7x forward P/E. Is now a good time to buy? Find out in our full research report, it’s free.

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-micro-cap company Tecnoglass (+1,754% five-year return). Find your next big winner with StockStory today.