Oakmark is the mutual fund family launched in 1991 by Harris Associates, the Chicago deep-value firm founded in 1976 (about $105bn AUM). Bill Nygren runs the flagship Oakmark Fund and David Herro the Oakmark International Fund, buying businesses at large discounts to intrinsic value and holding them like owners — publishing quarterly fund commentaries, market commentaries and insight articles.
This piece explains how Oakmark Funds grew from a small Chicago firm to a $70 billion giant by sticking to a simple strategy: value investing (buying undervalued stocks) and holding only 20 to 50 stocks, instead of the industry norm of over 100. For regular investors, the key takeaway is to choose funds where managers invest their own money and communicate openly every quarter. This builds trust and helps them stay disciplined during market downturns. Worth reading because it shows why less diversification can actually boost returns and how tax management matters for long-term gains.
An Oakmark research article reviews the company's success over its 25-year history, with the core argument being its adherence to a long-term value investing philosophy. The article emphasizes that Oakmark focuses on bottom-up value investing, does not seek to cover all style boxes, and instead dire
This chapter explores how Oakmark Funds, 25 years ago as a small, Chicago-based high-net-worth account management firm, successfully established itself in the highly competitive mutual fund industry. The author reviews the strategic thinking at the company's founding, emphasizing that it was not a blind gamble but was based on a clear understanding of its own strengths and targeted improvements to address industry pain points.
The author's core investment thesis is that Oakmark's success stems from adhering to a single, focused strategy of bottom-up value investing, competing with large fund companies through five differentiating initiatives. The counterintuitive judgments are: not pursuing coverage of all style boxes, but instead directly associating the brand with value investing; not pursuing excessive diversification, but amplifying returns from the best investment opportunities through concentrated holdings.
The author supports the thesis with the following data and logic:
Comparative Data Table:
| Dimension | Industry Average / Common Practice | Oakmark Practice |
|---|---|---|
| Investment Style Coverage | Fill all style boxes (value, growth, large-cap, small-cap, etc.) | Only bottom-up value investing |
| Shareholder Communication Frequency | Semi-annual (legally required) | Quarterly |
| Degree of Diversification (Number of Holdings) | Over 100 | Diversified funds: ~50; Concentrated funds: ~20 |
| Fund Launch Driver | Marketing department based on investor demand | Portfolio managers wanting to invest personal capital |
| Tax Focus | Maximize pre-tax returns | Maximize after-tax returns (via long-term holding and tax trading) |
This section discusses the current state of Oakmark Fund after 25 years of operation. The report notes that the company has adhered to its original brand positioning and investment strategy, receiving positive market feedback. With current assets under management reaching $70 billion, this validates the effectiveness of its long-term value investing philosophy.
The author's key judgment is that Oakmark's success stems from strict adherence to brand positioning and a high degree of trust with investors. The report argues that the Oakmark brand has become deeply associated with "value investing," and its portfolio consistently focuses on securities that are overlooked by the market but deemed undervalued by the company. A counterintuitive observation is that the company has not altered its strategy due to scale growth; instead, it reinforces alignment of interests with investors through highly concentrated holdings and substantial personal investments by insiders.
For investors, the core takeaway from the report is: choose asset managers whose interests are highly aligned with your own. Oakmark has built long-term trust through insider heavy investments, a highly concentrated portfolio strategy, and transparent shareholder communication. Investors should focus on institutions where fund managers' personal assets are deeply tied to fund performance, as this typically implies lower agency costs and stronger performance incentives. Additionally, tax management capability is an important dimension for evaluating a fund's long-term actual returns.