Worries about Chinese regulatory policies and their impact on stocks and growth shoot to the top of concerns among global fund managers, according to BofA's latest survey. Shanghai stocks fell 2% yesterday, weighing on Wall Street, after Beijing proposed more regulatory moves focused on Internet competition. It recoved some today, up 1%, while S&P (SPX) (NYSEARCA:SPY) and Dow futures (INDU) (NYSEARCA:DIA), are slightly lower and Nasdaq 100 futures (NDX:IND) (NASDAQ:QQQ) are edging up. But the latest monthly BofA survey shows China suddenly among the biggest tail risks for the market for fund managers, at 16%, after getting negligable expression sof concern in the July survey. China comes behind tail risk worries about inflation, at 22%, a Fed taper tantrum, at 20% (both declining) and the COVID Delta variant, at 19%, and asset bubbles, at 17% (both rising). The Invesco Golden Dragon China Portfolio ETF (NASDAQ:PGJ) is down 22% in the past