How much money is in the US stock market?
The New York Stock Exchange (NYSE, nicknamed "The Big Board") is an American stock exchange in the Financial District of Lower Manhattan in New York City. It is by far the world's largest stock exchange by market capitalization of its listed companies at US$30.1 trillion as of February 2018.
How do you know if market cap is too high?
Market cap is arrived at by multiplying the share price by the number of shares outstanding. So when a stock's price rises, so too does its market cap.
What is a good PE ratio?
So, what is a good PE ratio for a stock? A “good” P/E ratio isn't necessarily a high ratio or a low ratio on its own. The market average P/E ratio currently ranges from 20-25, so a higher PE above that could be considered bad, while a lower PE ratio could be considered better.
What does the market cap tell you?
Market cap measures what a company is worth on the open market, as well as the market's perception of its future prospects, because it reflects what investors are willing to pay for its stock. Large-cap companies are typically firms with a market value of $10 billion or more.