SMH is an ETF designed to replicate (before fees and expenses) the performance of the MVIS US Listed Semiconductor 25 Index, which targets companies involved in semiconductor production and equipment. The fund is top-heavy: recent fact-sheet data show large weights in Nvidia, Taiwan Semiconductor, Broadcom, ASML, and other key chipmakers/equipment names, meaning day-to-day moves often reflect a handful of mega-cap semis rather than the entire tech market.

A major read-through for the semiconductor complex today is SK hynix’s latest quarterly update, which highlighted strong AI-driven memory demand and continued emphasis on HBM performance, yield, quality, and supply stability. Even though SK hynix is not a core SMH holding, the company’s results tend to move the broader “AI hardware stack” narrative—benefiting memory names (like Micron) and reinforcing demand expectations for AI accelerators and the foundry/equipment chain that supports them.

SMH’s lack of movement suggests offsetting forces: some investors are reluctant to add risk right before Intel reports after the close on April 23, 2026, and Intel is a meaningful SMH position. With a large rally already priced into parts of the sector, the ETF can stall even when fundamental news is constructive, because traders focus on near-term catalysts (earnings) and the risk of volatility around them.