Chip stocks rally as hyperscaler AI capex boom continues into 2026

The semiconductor sector is experiencing an acceleration in momentumThe empirical fact that winners keep winning over the medium term. as investors re-price the durability of hyperscaler AI infrastructure spending. NVIDIA, AMD, Broadcom and ARM are all trading near or at record levels on the back of blockbuster earnings and commentary indicating that capex cycles are extending well beyond 2026. Palantir's recent commentary noted that hyperscalers are committing $725 billion to AI infrastructure, a figure that underscores the scale and durationBond price sensitivity to interest rate changes. of the buildout cycle. AMD is up 47% year-to-date on momentum from an enterprise AI cloud MOU with a major customer, while NVIDIA remains the top retailer conviction play on Wall Street forums.

Valuation compression concerns have largely given way to growth acceleration narratives. The Nasdaq Semiconductor Index (SOXX) is up 72.88% year-to-date and near 52-week highs, driven by extreme call bias in NVIDIA options (3.03 call-to-put ratio, indicating extreme bullish sentiment). Retail traders on Wall Street Bets have made semis their dominant sector position, with Micron, NVIDIA and AMD occupying three of the top 11 trending tickers in the 24-hour period. Broadcom and Lam Research are also benefiting from secular tailwinds around AI infrastructure deployment. The narrative holds that this is not a temporary supercycle but a multi-year replatforming of global compute, driven by generative AI workloads that will sustain elevated capex.

However, risks are accumulating beneath the surface. Valuations have re-rated sharply: NVIDIA trades at elevated forward multiples, and AMD's MKTBOX score shows strong growth conviction (91) but poor valuation scoring (38), suggesting the market has fully priced near-term upside. Skeptics point to China policy risks, potential oversupply in data center build-out, and the possibility that AI infrastructure spending moderates as model training efficiency improves. Additionally, a sustained oil shock and stagflation fears could damp capital spending plans at large cloud providers, creating a near-term headwind for chip demand.