Key Takeaways:
AXT Inc., a California-based semiconductor substrate maker, surged more than 5,100% over the past 12 months while Bitcoin and Ethereum each lost nearly 40%, marking one of the widest performance gaps between AI-linked equities and digital assets in market history.
"The scale of this divergence reflects a structural rotation of capital, not a short-term trade," said Rachel Kim, semiconductor supply chain analyst at Edgen. "Investors are pricing in years of AI infrastructure buildout, while crypto faces a liquidity squeeze as rate-cut expectations fade."
AXT, which supplies gallium arsenide (GaAs) and indium phosphide (InP) substrates — the raw material for high-frequency chips used in fiber optics, lidar, and AI data center interconnects — has seen its market capitalization swell from roughly $100 million to over $5 billion. The company's revenue more than tripled in its most recent fiscal year as demand from data center optical component makers surged, according to its annual filing.
The performance gap is stark. Bitcoin, which traded near $100,000 in mid-2025, has fallen to around $60,000, according to CoinGecko data. Ethereum has dropped from roughly $4,500 to below $2,800 over the same period. Meanwhile, the Philadelphia Semiconductor Index gained about 35%, with AXT far outpacing peers such as Coherent Corp., Lattice Semiconductor, and even Nvidia, which rose roughly 120% over the same stretch.
The divergence echoes a pattern Fineqia International senior associate Matteo Greco highlighted in the firm's May Crypto ETP Report. "The S&P 500, Nasdaq and many traditional finance indices have reached new all-time highs, while the crypto market has experienced mostly negative price action since Q4," Greco said. He attributed much of the equity strength to AI, noting that "only a relatively small group of companies is driving those gains."
AXT's substrate technology sits at a narrow but essential point in the semiconductor supply chain. GaAs and InP wafers enable higher-frequency signal transmission than standard silicon, making them critical for 800-gigabit optical transceivers — the interconnects that link GPUs inside AI clusters. As hyperscalers including Microsoft, Amazon, and Google expand data center capacity, demand for these components has accelerated.
The question for investors is whether AXT's valuation has overshot. At its current market cap of roughly $5 billion, the company trades at more than 50 times trailing earnings — a multiple that assumes years of sustained growth. Rival substrate makers such as Sumitomo Electric Industries and IQE Plc trade at far lower multiples, though they lack AXT's exposure to the AI optical segment.
For crypto holders, the message is more direct. The 40% decline in Bitcoin and Ethereum has coincided with a 5,100% rally in a single AI-linked stock — a capital rotation that, if sustained, could further pressure digital asset prices as institutional allocators favor equities tied to the AI infrastructure buildout.
This article is for informational purposes only and does not constitute investment advice.
