Stack & Signal

Fintech, AI, and the future of money. Track signal as finance, data, and technology converge.

About Stack & Signal

My perspective has been shaped across New York and London, from investment bank to venture capital to working with early-stage technology startups building at the frontier. Those vantage points have made me interested in what sits beneath the headline: the infrastructure, incentives, capital flows, and constraints that quietly shape where finance is going next.

Stack & Signal tracks the signals shaping fintech, AI, strategic finance, and cross-border business. It is written for founders, operators, investors, finance leaders, and curious students of the next layer of financial technology.

Joy Guo

Fintech, AI & Strategic Finance