The iShares Semiconductor ETF (SOXX) is up 79% year to date and roughly 152% over one year as of June 5, 2026.1 The rally is powered by explosive demand for AI compute and memory chips.
Individual chipmakers are cashing in on the surge. Vicor Corporation posted trailing twelve-month revenue of $471.7 million and net income of $136.7 million, giving it an $11.3 billion market capitalization as of the July 6, 2026 close.2
The boom is fueling an arms race among chipmakers. AMD, SK Hynix, and Phison are racing to solve AI compute and memory bottlenecks, expanding their reach through partnerships like the Meta-AMD Helios deal and fresh IPO activity. Rising leading-edge design costs are raising the barrier to entry for new competitors, concentrating gains among established players.
Geopolitics is shadowing the rally. Washington has moved to restrict rare-earth procurement tied to strategic semiconductor and defense supply chains, while Beijing has advanced its homegrown Zhenwu AI chip line. Both moves point to an accelerating decoupling between US and Chinese chip ecosystems, a risk factor investors are now pricing alongside the sector's gains.
For traders, the setup cuts both ways. AI-driven demand is real, reflected in earnings at firms like Vicor, but SOXX valuations now assume continued hyperscaler capex growth. Any slowdown in AI infrastructure spending, or an escalation in US-China trade restrictions, could hit the sector's most richly priced names hardest.
