If you’re going to invest in China, focus on indexes, rather than picking individual names, one strategist said. ‘Right now if you’re trying to bottom feed in China, stick to a broad index, because that will be what bounces, rather than trying to pick winners and losers,’ said Nick Colas, chief market strategist at Convergex, a New York-based brokerage firm. China’s Shanghai Composite Index rose 82 percent year-over-year, but is down 28 percent since its high on June 12. On Thursday, the index finished the session to the upside by 5.76 percent, its biggest gain in six years. The selloff in recent weeks was fueled by too many investors buying stocks on margin. To stop the bleeding, Chinese officials cut interest rates and suspended trading on over 50 percent of its listed stocks. It also barred larger shareholders from selling stocks for six months. ‘Anybody who wants to get involved today needs to understand they could lose another 20 or 30 percent as investors from the top already have.’ For investors wary of investing in mainland China, Colas said investing in Chinese companies listed in the United States is a safer strategy.