Hedge funds recorded heavy equity buying, with Goldman Sachs' prime brokerage business saying funds posted their largest net stock purchases in six months in the week ended Aug. 13 and were net buyers for a third straight week. Goldman said the scale of flows was 1.6 standard deviations above the past year's average, while overall portfolio risk finished near where it started, indicating a shift in positioning rather than a broad increase in risk. Separately, The Kobeissi Letter said in a post on X that hedge funds logged their second-largest weekly U.S. stock buying total of the past 12 months, with about 70% of demand in single stocks led by fresh long positions, and short positions in U.S.-listed ETFs declining for a sixth consecutive week.