Here are his explanations: The stock market is a trading network that allows investors to buy or sell shares of companies.

The trading curbs go into effect when the S&P 500 crosses certain thresholds during extreme market volatility.

Even if you've been through a stock market downturn before, it can be very difficult to sit back and watch your portfolio ...

We asked readers who were on the cusp of retirement whether they were watching the markets. About 400 replied.

How does the stock market work? Basically, investors need to put their money somewhere to hope that it will grow in value. Now you could stash your money under the mattress, so to speak ...