U.S. semiconductor exchange-traded funds SMH and SOXX attracted a combined $4.7 billion of new capital last week, the largest weekly inflow on record. This exceeds the previous weekly high by about $1.8 billion, or roughly 62%. Half of the most actively traded ETFs in early June were semiconductor‑focused, helping the sector index (SOX) climb 90% year‑to‑date and outperform other sectors. The rally in semiconductors is unprecedented in recent history.