Machines — they do such a good job cleaning your dishes, but what about running your stock market? In his new book, Dark Pools, Scott Patterson says that technology on Wall Street has left regulators mystified.

The Dow closed near its highest level in about four years yesterday, but how can that be when there are so many other economic indicators recently that don’t look so great?

Today President Obama will sign the STOCK Act — short for “Stop Trading On Congressional Knowledge.” It says Capitol Hill finally has to follow the same insider trading rules as everybody else.

Yesterday, the SEC brought charges against two money managers who allegedly misled and overcharged investors when selling them Facebook stock, before it officially goes public.

Warren Buffett says in his annual letter that Berkshire Hathaway has chosen his successor. Many investors care more about his stock advice.

The markets will always have their ups and downs, but Josh Brown of Fusion Analytics thinks the best way to prepare for a long retirement is to keep a little risk in your portfolio, especially as markets are looking up.

With investors feeling emboldened by a strengthening world economy, markets have steadily climbed since October.

When it goes public, Facebook is likely to be worth $75 billion or more. But, odds are, you aren't getting in on the real action.

Countries like France and Austria lost their AAA rating in the last Standard & Poor's downgrade — so why are the markets relatively flat today?

The Dow’s best- and worst-performing stocks of 2011.