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U.S. Equities: Software, Security, and Shifting Regimes | EP 211
February 19, 2026

In this episode, U.S. equity portfolio manager Grayson Witcher explores what it means to invest exclusively in American businesses at a time when the U.S. is becoming more short term, more transactional, and more central to global change. He contrasts a shifting U.S. “extraction” mindset with China’s longer-term industrial strategy and considers how that dynamic is reshaping globalization into a more regional, security-conscious world. The conversation then turns to portfolio implications: why the team has been reducing exposure to mature, highly penetrated software names facing intensifying competition and AI disruption, how the market’s treatment of AI has evolved from hype to a more “show me the returns” phase, and where they see resilient opportunities.

Highlights:

  • How a more short-term, “extraction”-oriented U.S. policy stance—via tariffs, reshoring, and industrial policy—is altering incentives for companies and trading partners.
  • The evolving nature of software moats in an AI world, including higher competitive intensity, mature end markets, and why some long-term winners’ valuations may no longer be justified.
  • The market’s transition from rewarding any AI narrative to demanding clearer evidence of economic returns on massive cloud and data-center capital spending.
  • A deliberate tilt toward businesses positioned for a more regionalized, security-focused world order, including nuclear, defense, and automation suppliers with multiple ways to win.
  • The importance of remaining bottom-up and valuation-driven while acknowledging regime change—using portfolio construction to manage uncertainty rather than making binary macro bets.
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.