The final sessions before the Juneteenth holiday saw significant gains in semiconductor and networking stocks, driven by persistent optimism around artificial intelligence infrastructure spending. Taiwan Semiconductor Manufacturing Company (TSMC) surged 6.9% on Thursday to close at $462.12, while Cisco Systems edged higher to $119.54, reinforcing investor confidence in the long-term AI buildout cycle despite near-term macro uncertainties.
TSMC’s outperformance stood out, with the pure-play foundry benefiting from its central role in advanced chip manufacturing for AI leaders like Nvidia and AMD. The stock’s weekly gain outpaced Nvidia, which rose 3.0% in the same session, as the broader PHLX Semiconductor Index advanced 6.4%. Taiwan’s central bank further buoyed sentiment by keeping rates steady and sharply raising its 2026 growth forecast to 9.45%, citing AI-driven semiconductor demand.
Cisco, meanwhile, managed a modest gain as investors balanced short-term volatility with optimism around its AI networking pivot. The company has reported billions in AI-related orders from hyperscalers and raised its full-year AI order outlook, with CEO Chuck Robbins positioning Cisco as “critical infrastructure for the AI era.” However, margin pressures from tariffs and restructuring costs remain key risks.
Supply constraints continue to tighten across the advanced chip sector, with TSMC repeatedly signaling that customer orders exceed its production capacity. This supply-demand imbalance has reinforced investor conviction in the foundry’s pricing power, while Nvidia’s recent $25 billion bond issuance further supported sector liquidity. Upcoming catalysts—including Nvidia’s shareholder meeting and U.S. inflation data—are expected to shape near-term direction for chip and infrastructure stocks.
