On Friday, China was awarded the 2022 Winter Olympics, which will make it the first country with a city, Beijing, to host both Summer and Winter Games. But that wasn't the big news out of China in the past week. A huge slide in the Chinese stock market on Monday and Tuesday brought the July decline in the Shanghai Composite to nearly 15 percent. It's down by twice that much going back to mid-June. Roughly $4 trillion in market value has been wiped out.

At this point in China's stock-market spiral, it's too soon to really know how big a deal it is.