capital letters that are the same height as lower case letters (= a, b, c, etc.)

The title is output in small caps. 标题被设成小型大写字母。

a company that has a low total value of shares, compared to other companies

Not all small caps are good investments. 并非所有的小市值股票都是好的投资。

When we first invested, the company was a small cap.