
Mid-cap stocks often strike the right balance between having proven business models and market opportunities that can support $100 billion corporations. However, they face intense competition from scaled industry giants and can be disrupted by new innovative players vying for a slice of the pie.
These dynamics can rattle even the most seasoned professionals, which is why we started StockStory - to help you separate the good companies from the bad. Keeping that in mind, here is one mid-cap stock with a long growth runway and two that could be down big.
Two Mid-Cap Stocks to Sell:
F5 (FFIV)
Market Cap: $21.63 billion
Originally named after the F5 tornado, the most powerful on the meteorological scale, F5 (NASDAQ: FFIV) provides security and delivery solutions that protect applications across cloud, data center, and edge environments for large organizations.
Why Is FFIV Not Exciting?
- Average ARR growth of 3.3% over the last year has disappointed, suggesting it’s had a hard time winning long-term deals and renewals
- Estimated sales growth of 5.2% for the next 12 months implies demand will slow from its two-year trend
- Static operating margin over the last year shows it couldn’t become more efficient
F5 is trading at $379.70 per share, or 6.6x forward price-to-sales. Check out our free in-depth research report to learn more about why FFIV doesn’t pass our bar.
FormFactor (FORM)
Market Cap: $10.15 billion
With customers across the foundry and fabless markets, FormFactor (NASDAQ: FORM) is a US-based provider of test and measurement technologies for semiconductors.
Why Do We Think Twice About FORM?
- Sales trends were unexciting over the last five years as its 3.1% annual growth was below the typical semiconductor company
- Competitive supply chain dynamics and steep production costs are reflected in its low gross margin of 41.4%
- Weak free cash flow margin of 6.3% has deteriorated further over the last five years as its investments increased
At $130.49 per share, FormFactor trades at 53.7x forward P/E. If you’re considering FORM for your portfolio, see our FREE research report to learn more.
One Mid-Cap Stock to Watch:
Teledyne (TDY)
Market Cap: $29.38 billion
Playing a role in mapping the ocean floor as we know it today, Teledyne (NYSE: TDY) offers digital imaging and instrumentation products for various industries.
Why Could TDY Be a Winner?
- Impressive 14.9% annual revenue growth over the last five years indicates it’s winning market share this cycle
- Operating margin improvement of 5.1 percentage points over the last five years demonstrates its ability to scale efficiently
- Free cash flow margin expanded by 9.6 percentage points over the last five years, providing additional flexibility for investments and share buybacks/dividends
Teledyne’s stock price of $632.96 implies a valuation ratio of 25x forward P/E. Is now the time to initiate a position? See for yourself in our full research report, it’s free.
Stocks We Like Even More
WHILE YOU’RE HERE: Top 9 Market-Beating Stocks. The best stocks don’t just beat the market once. They do it again. And again. Robust revenue growth, rising free cash flow, returns on capital that leave their competition in the dust. The market has already rewarded these businesses.
But our AI platform says the party isn’t over. Find out which 9 stocks made the cut this week — FREE. Get Our Top 9 Market-Beating 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-micro-cap company Tecnoglass (+1,754% five-year return). Find your next big winner with StockStory today.