According to Goldman Sachs' prime brokerage division, hedge funds purchased U.S. stocks at the fastest pace in six months last week, while the S&P 500 continued its record-breaking upward trend. Goldman traders noted in a client report that the changes in trading volume were driven by bullish purchases of index products and exchange-traded funds, as well as short covering. Short positions in U.S.-listed exchange-traded funds decreased for the second consecutive week, down by 0.6%. The ongoing enthusiasm for investments in artificial intelligence infrastructure, coupled with performance exceeding expectations, has contributed to the sustained rise in the U.S. stock market. The S&P 500 has risen for nine consecutive weeks, marking the longest stretch since 2023. Meanwhile, the tech-heavy Nasdaq 100 index has gained over 20% this year.