Nathan Foster
I focus on AI infrastructure investment products and the semiconductor companies that enable large-scale data-center computing. My research covers AI accelerators, networking, memory, advanced packaging, semiconductor equipment, and other infrastructure components. I write for this website because AI infrastructure is a multi-layer ecosystem. Looking only at GPU manufacturers does not capture the full semiconductor supply chain supporting AI systems. Memory, networking, packaging, manufacturing equipment, and power-efficient components all contribute to system capacity. My research examines AI infrastructure ETFs and thematic indices, with particular attention to how portfolios divide exposure across different parts of the ecosystem. I analyze holdings, concentration, sector definitions, and rebalancing. I also track data-center capital expenditure and technology transitions to understand how changes in AI infrastructure may influence thematic ETF exposure. My goal is to provide readers with a broader perspective on AI infrastructure investing and explain the semiconductor technologies represented within these specialized funds.
AI infrastructure ETF researcher covering accelerators, networking, memory, packaging, equipment, data-center investment, and thematic index exposure.
Nathan Foster is an AI infrastructure ETF analyst focused on the semiconductor ecosystem supporting large-scale data-center computing. His research extends beyond GPUs to memory, networking, packaging, equipment, and related technologies.
Nathan examines AI infrastructure ETFs and thematic indices by studying holdings, sector definitions, concentration, geographic exposure, and rebalancing methodologies.
Data-center capital expenditure is an important part of his research. Changes in AI infrastructure investment can influence demand across multiple semiconductor categories rather than a single product segment.
Through his articles, Nathan provides readers with a broader view of AI infrastructure investment products and explains how specialized ETFs capture different layers of the semiconductor ecosystem supporting artificial intelligence.
His Articles
Estimating the Pulse Effect of Post-2026 US Midterm Election Policy Expectations on Semis
Midterm elections don’t manufacture a single chip, but they can move the pulse of the entire semiconductor complex—through budgets, export controls, tax incentives, and energy policy. In 2026, that pulse is particularly important. AI, data centers, and onshoring drives have put semis at the center of U.S. industrial and security strategies. When investors look past the vote to what policy might come next, they’re not just guessing about politics; they’re re‑pricing interest rates, exchange rates, credit risk, and commodity demand. The question is: how do we estimate the pulse effect of post‑2026 US midterm election policy expectations on semis in a macro-linked way?