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Mid-cap

A mid-cap stock is a company with a market capitalization (total value of all its shares) between roughly $2 billion and $10 billion. Market cap is calculated by multiplying the stock price by the number of shares outstanding. You'll encounter mid-caps when screening stocks or reading investment research—they're the middle ground between smaller, riskier companies and massive, stable ones. Mid-caps often appeal to investors seeking growth potential without extreme volatility. For example, a regional retail chain or a specialized software company might be mid-cap, offering more room to expand than established giants but more stability than tiny startups. They're sometimes called the "Goldilocks" of stock investing.

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Updated July 1, 2026.