Hedge, mutual funds diverge on mega-cap AI; both buy infrastructure stocks

Goldman Sachs' analysis of positioning across 991 hedge funds holding $5.4 trillion of gross equity positions and 504 large-cap active mutual funds holding $4.6 trillion in equity assets reveals a market bifurcation in Q2 2026. While both investor groups converged on smaller AI infrastructure plays—adding to Bloom Energy, Flex, Seagate Technology, and a dozen other infrastructure names—they split decisively on the mega-cap AI stocks that have driven recent market moves. Hedge funds' net tilt toward mega-cap AI appears selective: they sold most of the group while buying only Microsoft and Amazon.com, whereas mutual funds, conversely, sold those same two stocks. The body notes that hedge fund returns have tracked closely with swings in the AI trade, suggesting their positioning shifts signal confidence or caution in the sector's direction.

Meanwhile, mutual funds have increased their allocation to AI infrastructure stocks sharply but remain underweight the sector relative to benchmark weights, potentially signaling either caution or a transition still underway. Both groups also broadened their exposure beyond AI: they increased financials sector tilts to multi-year highs, with hedge funds raising their net tilt by more than 300 basis points to the largest position in the sector since before the 2008 financial crisis, and mutual funds hitting their largest financials overweight since at least 2012.