Extreme Voltality Rocks China Stocks Wednesday Sep 02,2015

China stocks swung wildly on Wednesday Sep 02,2015 as investors grappled with the market's latest episode of extreme volatility.

The benchmark Shanghai Composite shed 4.2% at the opening bell, only to recover and close with a 0.2% loss. The smaller Shenzhen Composite followed a similar pattern, opening nearly 5% lower before rebounding to post a 2% decline.

The Shanghai index has now crashed roughly 40% from its June 12 peak, wiping out all gains made this year.