Analysis of David Herro's Non-U.S. Stock Investing Advice and Impact on OAKI ETF

This analysis is based on a MarketWatch article published on December 29, 2025, featuring David Herro, a highly regarded fund manager at Harris Associates, who manages the Oakmark International Large Cap ETF (OAKI) [1]. Herro’s extensive track record includes being named Morningstar’s International Equity Manager of the Decade (2009) and International Manager of the Year (2006, 2016) [2].

Due to crawl tool limitations, the full content of the article (specific “secrets” and recommendations) remains inaccessible. However, short-term market data from December 29 shows mixed to negative performance: the OAKI ETF declined by 0.52% in after-hours trading [0], while major non-U.S. indices like the FTSE (-0.04%), Nikkei (-0.32%), and Hang Seng (-1.13%) also had modest negative movements [0]. These fluctuations are relatively small and not conclusively attributable to the article, as they could stem from broader daily market factors.

Long-term data on OAKI shows stable performance with low volatility from December 11 to 29, 2025, trading within the range of $25.29-$25.89 [0]. Volume on December 29 was slightly below average at 115,894 shares [0]. Herro’s value-oriented investment philosophy (focused on quality companies at discounted valuations) has historically influenced investor allocation to international equities, suggesting his advice could have long-term impacts if it contains actionable insights.

1. Herro’s credibility (evidenced by Morningstar awards) makes his advice potentially influential for both retail and institutional investors considering non-U.S. equities.
2. Short-term market movements on December 29 are not strong enough to link to the article, but long-term inflows into OAKI and non-U.S. stocks could materialize if the “secrets” provide compelling insights.
3. The knowledge gap from inaccessible full article content limits precise impact assessment, requiring ongoing monitoring of market sentiment and ETF inflows.

• Risks
  : Past performance does not guarantee future results, so investors may overreact to Herro’s advice without proper due diligence. Incomplete article content could lead to misinterpretation of his recommendations.
• Opportunities
  : If Herro’s secrets highlight undervalued regions, sectors, or companies, it could attract increased capital to non-U.S. equities and related ETFs like OAKI, driving long-term performance.

• Event: MarketWatch article (December 29, 2025) featuring David Herro’s non-U.S. stock investing advice.
• Herro’s Background: Co-CIO at Harris Associates, OAKI manager, with a distinguished track record (Morningstar awards).
• Short-Term Market Data: OAKI -0.52% after-hours; major non-U.S. indices slightly negative (inconclusively linked to the article).
• Long-Term Context: OAKI’s stable recent performance and Herro’s value-oriented approach may influence future investor behavior.
• Monitoring Factors: Financial media reception, OAKI asset flows, and non-U.S. market performance relative to U.S. stocks.

[0] Ginlix Analytical Database \n[1] MarketWatch - This winning fund manager spills 4 secrets about smart ways to buy non-U.S. stocks \n[2] Yahoo Finance - Harris | Oakmark expands active ETF suite targeting…