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. That said, here is one profitable company that leverages its financial strength to beat the competition and two best left off your watchlist.

Two Stocks to Sell:

A. O. Smith (AOS)

Trailing 12-Month GAAP Operating Margin: 19%

Credited with the invention of the glass-lined water heater, A.O. Smith (NYSE: AOS) manufactures water heating and treatment products for various industries.

Why Does AOS Worry Us?

1. Sales were flat over the last two years, indicating it’s failed to expand this cycle
2. Earnings growth underperformed the sector average over the last two years as its EPS grew by just 2.2% annually
3. Waning returns on capital imply its previous profit engines are losing steam

A. O. Smith’s stock price of $67.19 implies a valuation ratio of 16.5x forward P/E. Dive into our free research report to see why there are better opportunities than AOS.

Verisk (VRSK)

Trailing 12-Month GAAP Operating Margin: 43.7%

Processing over 2.8 billion insurance transaction records annually through one of the world's largest private databases, Verisk Analytics (NASDAQ: VRSK) provides data, analytics, and technology solutions that help insurance companies assess risk, detect fraud, and make better business decisions.

Why Is VRSK Not Exciting?

1. Muted 2% annual revenue growth over the last five years shows its demand lagged behind its business services peers
2. Estimated sales growth of 4.4% for the next 12 months implies demand will slow from its two-year trend
3. Earnings growth over the last five years fell short of the peer group average as its EPS only increased by 7.2% annually

Verisk is trading at $167.85 per share, or 21.5x forward P/E. Check out our free in-depth research report to learn more about why VRSK doesn’t pass our bar.

One Stock to Buy:

TransDigm (TDG)

Trailing 12-Month GAAP Operating Margin: 46.5%

Supplying parts for nearly all aircraft currently in service, TransDigm (NYSE: TDG) develops and manufactures components and systems for military and commercial aviation.

Why Are We Bullish on TDG?

1. Core business can prosper without any help from acquisitions as its organic revenue growth averaged 10.1% over the past two years
2. Additional sales over the last five years increased its profitability as the 26.8% annual growth in its earnings per share outpaced its revenue
3. Strong free cash flow margin of 20.4% enables it to reinvest or return capital consistently, and its rising cash conversion increases its margin of safety

At $1,222 per share, TransDigm trades at 29.4x forward P/E. Is now the time to initiate a position? Find out in our full research report, it’s free.

Stocks We Like Even 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 meeting 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 (+1,326% 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.