
The S&P 500 (^GSPC) is often seen as a benchmark for strong businesses, but that doesn’t mean every stock is worth owning. Some companies face significant challenges, whether it’s stagnating growth, heavy debt, or disruptive new competitors.
Even among blue-chip stocks, not all investments are created equal - which is why we built StockStory to help you navigate the market. That said, here is one S&P 500 stock that is leading the market forward and two best left off your watchlist.
Two Stocks to Sell:
Biogen (BIIB)
Market Cap: $25.77 billion
Founded in 1978 and pioneering treatments for some of medicine's most complex challenges, Biogen (NASDAQ: BIIB) develops and markets therapies for neurological conditions, including multiple sclerosis, Alzheimer's disease, spinal muscular atrophy, and rare diseases.
Why Is BIIB Risky?
- Products and services are facing significant end-market challenges during this cycle as sales have declined by 6% annually over the last five years
- Sales were less profitable over the last five years as its earnings per share fell by 14.2% annually, worse than its revenue declines
- Diminishing returns on capital suggest its earlier profit pools are drying up
Biogen is trading at $175.80 per share, or 10.9x forward P/E. If you’re considering BIIB for your portfolio, see our FREE research report to learn more.
Truist Financial (TFC)
Market Cap: $59.36 billion
Born from the 2019 merger of BB&T and SunTrust in one of the largest banking combinations since the 2008 financial crisis, Truist Financial (NYSE: TFC) is a bank holding company that offers a wide range of financial services including consumer and commercial banking, wealth management, insurance, and lending solutions.
Why Do We Pass on TFC?
- The company has faced growth challenges as its 4.2% annual net interest income increases over the last five years fell short of other banking companies
- Projected net interest income decline of 11.4% for the next 12 months points to a tough demand environment ahead
- Flat earnings per share over the last five years underperformed the sector average
At $48.84 per share, Truist Financial trades at 0.9x forward P/B. Dive into our free research report to see why there are better opportunities than TFC.
One Stock to Watch:
Teledyne (TDY)
Market Cap: $29.41 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 Should TDY Be on Your Watchlist?
- Annual revenue growth of 14.7% over the last five years was superb and indicates its market share increased during this cycle
- Operating margin improvement of 5.3 percentage points over the last five years demonstrates its ability to scale efficiently
- TDY is a free cash flow machine with the flexibility to invest in growth initiatives or return capital to shareholders, and its improved cash conversion implies it’s becoming a less capital-intensive business
Teledyne’s stock price of $629.63 implies a valuation ratio of 26.5x forward P/E. Is now the right time to buy? See for yourself in our in-depth research report, it’s free.
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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 Comfort Systems (+782% five-year return). Find your next big winner with StockStory today.
