According to ChainCatcher, Goldman Sachs' institutional brokerage business said that as the stock market rally cooled, hedge funds' short positions in U.S.-listed ETFs across asset classes increased by the largest amount in nearly four years last month. Vincent Lin, co-head of Goldman Sachs Prime Insights & Analytics, said that short flows in U.S.-listed ETFs increased by 14.6% in December, the largest monthly increase since February 2021. Macro products such as indexes and exchange-traded funds (ETFs) received net purchases in the first half of the month, but selling activity increased toward the end of the year. The most shorted market areas include large-cap and small-cap stocks, healthcare, and corporate bond ETFs. (Jinshi)