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U.S. Mid-Cap: The Physical Economy Comeback, Capital Intensity, and Portfolio Positioning | EP 216
May 14, 2026

In this episode, Jeff Mo, U.S. mid-cap portfolio manager, explores a fundamental shift in how economies may grow over the next decade. He makes the case that after 25 years of intangible, internet-driven expansion, growth may increasingly depend on building physical things again: data centers, electrical infrastructure, factories, defense systems, satellites. Jeff walks through the forces driving this transition, from AI's voracious appetite for capital to geopolitical tensions reshaping supply chains and defense spending. The conversation examines how these macro themes connect to bottom-up stock selection, where the U.S. mid-cap team is finding opportunities today, and why maintaining inherent contradictions in the portfolio remains essential even as thematic investing dominates market behavior.

Key Highlights

• Why producing one unit of GDP today requires about a third as much oil as in the 1970s, yet  capital expenditure per unit of GDP growth may be rising as the economy shifts from intangible services back toward physical infrastructure and manufacturing.

• How AI data center buildouts, reshoring of manufacturing, rising defense budgets, and the expanding space economy are all driving higher demand for physical capital, commodities, and industrial capacity after a decade of underinvestment.

• How the hyperscalers (Google, Amazon, Microsoft, Meta) are moving from massive net cash positions to net debt as they fund AI infrastructure, tightening capital availability for the rest of the economy and potentially raising interest rates and dampening consumer spending.

• Where the U.S. mid-cap team is finding opportunities aligned with these themes, from companies like Northrop Grumman, SanDisk, and OSI Systems, while maintaining portfolio balance through inherent contradictions.

• Why humility matters most when contemplating big-picture themes: the goal isn't predicting the future but building a diversified portfolio of wealth-creating companies that can withstand multiple scenarios.
 

A transcript of this episode is available below, modified for a more enjoyable reading experience. For more posts exploring the ideas we talk about in the episode, check out our Related Reads links.


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This blog post is solely intended for informational purposes and should not be construed as individualized investment advice, research, or a recommendation to buy, sell or hold specific securities. Information provided reflects current views based on data available at the time or writing and may change without notice. Mawer Investment Management Ltd. and/or its clients may hold positions in the securities mentioned, which may create a potential conflict of interest. While efforts are made to ensure accuracy, Mawer Investment Management Ltd. does not guarantee the completeness or accuracy of this information and disclaims liability for any reliance placed on the publication. Mawer Investment Management Ltd. is not liable for any damages arising out of, or in any way connected with, its use or misuse.
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This blog post is solely intended for informational purposes and should not be construed as individualized investment advice, research, or a recommendation to buy, sell or hold specific securities. Information provided reflects current views based on data available at the time or writing and may change without notice. Mawer Investment Management Ltd. and/or its clients may hold positions in the securities mentioned, which may create a potential conflict of interest. While efforts are made to ensure accuracy, Mawer Investment Management Ltd. does not guarantee the completeness or accuracy of this information and disclaims liability for any reliance placed on the publication. Mawer Investment Management Ltd. is not liable for any damages arising out of, or in any way connected with, its use or misuse.