Brace for 'choppy' market after Wall Street analysts trim S&P 500 earnings estimates for third quarter<blockquote>华尔街分析师下调标普500第三季度盈利预期后,为“波动”市场做好准备</blockquote>
'It's a good idea to lighten up on equity exposure,' says DataTrek co-founder
Is the U.S. stock mark