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China stocks crash, now what? Buy

stock investor gestures as she checks share prices at a security firm in Fuyang, east China's Anhui province on May 28, 2015. Chinese stocks plunged 6.5 percent on May 28 on concerns over tight liquidity and stricter requirements for margin trading, after closing at a more than seven-year high the previous day, dealers said.
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stock investor gestures as she checks share prices at a security firm in Fuyang, east China's Anhui province on May 28, 2015. Chinese stocks plunged 6.5 percent on May 28 on concerns over tight liquidity and stricter requirements for margin trading, after closing at a more than seven-year high the previous day, dealers said.

U.S. investors woke up Thursday to a crash in China's Shanghai composite greater than 6 percent, knocking down a stock market they have been piling into as it doubled over the last 12 months.

History shows investors should buy even more Chinese shares trading on U.S. exchanges after big selloffs such as this one.