Hedge funds aggressively maintained and expanded their exposure to fundamentally strong technology and semiconductor stocks in April 2026, catching a powerful ride as the S&P 500 surged over 10% during the month. According to data platform Hazeltree, long positioning remains heavily clustered around AI and mega-cap leaders.
The Key Numbers & Stock Moves:
- The Index Rally: Hedge funds chased a massive risk-on bounce that pushed the S&P 500 up by more than 10% in April.
- Mega-Cap Inflows: Long positions in Meta ($META.O) and Amazon ($AMZN.O) jumped by over 5% month-over-month in terms of fund participation.
- The Semiconductor Shift: The share of companies within the Philadelphia Semiconductor Index in which hedge funds held net long positions rebounded to 57% (up from 53% in March).
The Sector Crowding (Longs vs. Shorts):
- The Long Favorites: While Nvidia ($NVDA.O) experienced a 4.5% decline in total long fund counts, it remained the single most crowded long bet in the chip sector. Nvidia was closely followed by Broadcom ($AVGO.O) and Lam Research ($LRCX.O).
- The Bearish Targets (Shorts): Short sellers aggressively targeted specific semiconductor names. ON Semiconductor ($ON.O) emerged as the most crowded short position, followed closely by Microchip Technology ($MCHP.O) and Monolithic Power Systems ($MPWR.O).
The Bottom Line: Despite lingering macroeconomic and geopolitical headwinds, global hedge funds leaned directly into quality, premium-margin tech businesses. They structurally shifted away from softer automotive/industrial chip producers like ON Semi to stack capital into specialized AI processors and capital equipment providers.