Here's what it takes to trigger stock-market circuit breakers

Don't make these 'what were you thinking?' mistakes before you get the keys.

A number of TD Ameritrade customers on Monday were reporting trouble accessing their accounts via frustrated tweets, prompting the online brokerage to apologize. TD Ameritrade told MarketWatch in an email that it has been “seeing industry-wide latency 

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U.S. stocks plunged to lowest levels since last October after a rout in Chinese stocks triggered a world-wide selloff of risky assets such as equities. The Dow Jones Industrial Average DJIA, -1.73% dropped 1000 points, or 6%, to 15,441. The S&P 500 SPX

As of the third quarter of 2014, rents were more than 15% higher than at the tail end of the Great Recession in 2009, the report found. Read: A lower homeownership rate is the 'new normal'. More from MarketWatch