Semis Down 2-3% on China Tariff Concerns, NVDA Earnings Loom: Supply Chain Uncertainty

Semiconductor equities stumbled on May 15, 2026, as tariff uncertainty and macro weakness pressured the sector despite its earlier dominance in the year's rally. NVDA fell roughly 2.2 percent, AMD declined 3.3 percent, and Broadcom slipped as well, following broader selloff momentumThe empirical fact that winners keep winning over the medium term. tied to inflationThe rate at which prices rise across an economy. fears and rising yields. The weakness came despite a report that the US had approved H200 chip exports to Chinese companies (positive for NVDA), suggesting that macro risk-off sentiment overrode single-stock news flow.

The backdrop includes deteriorating sentiment on China trade policy. Reports indicate China has signaled reluctance to accept ongoing US semiconductor restrictions, and counter-tariff threats have reignited debates about supply-chain decoupling. Samsung's weakness and North Korea tensions earlier in the week also spilled into US futures markets, creating a risk-off sentiment that caught chipmakers in the crossfire. Additionally, yields rising to multi-decade highs compressed valuations across the technology complex, making high-growth semiconductor stocks more vulnerable to downward repricing.

NVDA's earnings call on May 22 (next week) will be the focal point for the sector. The company has gained 20 percent since May 5, adding approximately $1 trillion in market cap and pushing the stock toward a market cap nearing $5.7 trillion. This rapid appreciation has elevated near-term guidanceCompany-issued forecasts of future financial performance. expectations; any guidance miss or cautious tone on data-center spending, China demand, or GPU supply chains could trigger a sharp selloff. Commentary from executives on inventory levels, customer demand elasticity, and geopolitical risk exposure will be closely parsed.

The sector debate hinges on whether AI capex growth remains durable or faces a cyclical correction. Skeptics point to cooling demand signals from some end-markets, elevated inventory levels at certain retailers, and the possibility that mega-cap tech companies may modulate near-term spend to manage return-on-capital. Bulls emphasize that AI adoption is still early, that major models require increasing compute density, and that NVIDIA remains the primary beneficiary of that trend. Options markets are pricing in elevated volatility around NVDA earnings, with IV expanding notably heading into the event.