AI Momentum, Tariff Whiplash, and the Market’s Shrinking Core

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Tariffs, Tech, & Shifting Momentum

Markets have largely dismissed tariff risks, viewing them as manageable, with U.S. equities climbing to record highs and the S&P 500 trading at 22.5x forward earnings. Although international equities still lead year-to-date, U.S. stocks have outperformed over the past one and three-month periods as investors appear to be looking past near-term trade uncertainty. Much of the cost burden from tariffs to date was absorbed by importers and businesses, though the effects vary across sectors and are still unfolding.

Investor sentiment has been further supported by strong earnings from mega-cap tech and ambitious AI infrastructure spending plans by the so-called “Big Four of AI”, with Meta, Amazon, Microsoft, and Alphabet, marking a significant departure from their traditionally capital-light business models. The accelerating need for compute capacity will likely sustain demand for energy infrastructure, positively impacting adjacent sectors such as utilities and industrials within the AI ecosystem. Looking ahead, corporate profit margins will be a key indicator. Companies with stronger pricing power are likely to weather cost pressures more effectively. While tariffs may contribute to inflation and modestly slow growth, their longer-term impact on the broader economy is expected to remain contained.