Oakmark Fund: Third Quarter 2012

Theme and Background

This section focuses on the long-term and short-term performance of the Oakmark Fund (Investor Class) as of September 30, 2012, and discloses its fee structure. The report aims to present the fund's historical returns since its inception in 1991, while emphasizing the impact of short-term volatility on investor decision-making.

Core Thesis

The author's core investment argument is that the Oakmark Fund has demonstrated steady long-term performance, but its short-term returns—particularly the one-year return of 30.43%—are significantly higher than the long-term average, potentially reflecting a market rebound or a concentration effect from specific asset allocations. A counterintuitive insight is that despite the extremely high one-year return, the five-year (4.14%) and ten-year (8.28%) returns are far lower, suggesting that short-term high returns are unsustainable and that investors should be wary of the risk of chasing gains.

Key Arguments and Data

The report reveals the volatility of the fund's performance through a comparison of returns across multiple time horizons. Key data are as follows:

Time Period	Annualized Total Return
Since Inception (August 5, 1991)	12.34%
10-Year	8.28%
5-Year	4.14%
1-Year	30.43%
3-Month	6.32%

Long-term vs. Short-term Comparison: The annualized return since inception is 12.34%, but the one-year return is as high as 30.43%, 2.5 times the long-term average, indicating significant short-term market fluctuations.
Fee Impact: The gross expense ratio (as of September 30, 2011) is 1.04%, which may erode net returns, with a more pronounced effect during low-return cycles.
Volatility Signal: The three-month return of 6.32% is lower than the one-year return but higher than the five-year average, suggesting a recent market rebound whose sustainability is questionable.

Companies/Assets Involved

Oakmark Fund (Investor Class): The target fund analyzed in the report. Key data: annualized return since inception of 12.34%, one-year return of 30.43%, and expense ratio of 1.04%. The author does not explicitly take a bullish or bearish stance but implies through the data that short-term high returns are unsustainable and that investors should be mindful of the erosion of long-term returns by fees.

Investment Implications

Beware of the Trap of Short-Term High Returns: The one-year return of 30.43% deviates significantly from the long-term average. Investors should not view it as normal and need to assess whether the market rebound is driven by non-fundamental factors.
Prioritize Fee Management: An expense ratio of 1.04% can significantly compress net returns during low-return cycles (e.g., the five-year return of 4.14%). It is advisable to opt for similar funds or index products with lower fees.
Long-Term Holding Strategy: The annualized return of 12.34% since inception indicates that long-term holding can smooth out short-term volatility, but this must be weighed against fees and individual risk tolerance.