SOXX climbed 12.6% in June and was up 88% in 2026 as of the time of writing, a run that showed how much broad semiconductor exposure can matter when the sector is moving fast. The iShares Semiconductor ETF did not need one giant winner to carry it; it rose as capital equipment, memory and logic names all fed the advance.
Investors searching for SOXX now are looking at a fund that aims to track the NYSE Semiconductor Index, a basket built from the 30 largest U.S.-listed semiconductor companies and then constrained by rules designed to stop one or two names from taking over. The five biggest holdings are capped at 8% each, the rest at 4%, and the index is rebalanced at the end of each quarter. That structure mattered in early July, when Micron Technology and Advanced Micro Devices each made up slightly more than 8% of the ETF, Nvidia was at 7.5%, and Intel ranked fifth at about 6.2%.
The June gain came from several corners of the industry at once. Applied Materials and KLA Corp helped the ETF as semiconductor capital-spending names rose on AI-chip demand and the investment needed to make those chips. Intel and Micron also delivered strong performances in the month, while Nvidia and Broadcom fell. That mix is the point of SOXX: it gives investors broad exposure to the group, even when the biggest AI-linked names are not the only stocks doing the work.
Micron’s own numbers showed why the market kept bidding up chip shares. The company reported blockbuster third-quarter earnings and said overall supply was well below demand for DRAM and NAND, with DRAM described as extremely constrained and HBM as very constrained. It also said it would increase fiscal capital spending to $27 billion in fiscal 2026 from $15.9 billion in 2025. Wall Street analysts, according to S&P Global Market Intelligence, penciled in $44 billion, a gap that shows how aggressively the market expects chip-making investment to keep running.
One claim floated through the sector in June that did not come with the same support: Donald Trump said Intel and Apple had agreed to develop and manufacture chips in the U.S., but neither company confirmed it. That mattered because SOXX’s rally was being driven by real spending plans, real earnings and real supply tightness, not just political noise. The ETF’s capping rules also kept that rally from becoming a bet on one megacap name. If June answered anything, it was that SOXX was built to catch the broader chip upswing — and in a month when that upswing came from equipment, memory and logic together, the fund did exactly that.
