Fund Evaluator:

PRIMECAP Odyssey Aggressive Growth Overview

PRIMECAP Odyssey Aggressive Growth (POAGX) is an actively managed U.S. Equity Mid-Cap Growth fund. PRIMECAP Odyssey Funds launched the fund in 2004.

The investment seeks to provide long-term capital appreciation. The fund invests primarily in the common stocks of U.S. companies, emphasizing those companies with prospects for rapid earnings growth. It may invest in stocks across all market sectors and market capitalizations and has historically invested significant portions of its assets in mid- and small-capitalization companies.

About PRIMECAP Odyssey Aggressive Growth (POAGX)

There are 5 members of the management team with an average tenure of 18.18 years: M. Ansari (2012), James Marchetti (2014), Alfred Mordecai (2004), Theo Kolokotrones (2004), Joel Fried (2004). Management tenure is more important for actively managed funds than passive index funds.

The fund has 1 primary benchmark: S&P 500 (TR) (1970) index with a weighting of 100%. PRIMECAP Odyssey Aggressive Growth has 181 securities in its portfolio. The top 10 holdings constitute 32.1% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.

PRIMECAP Odyssey Aggressive Growth is part of the Equity global asset class and is within the U.S. Equity fund group. PRIMECAP Odyssey Aggressive Growth has 11.5% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 86.6%. There is 11.5% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). PRIMECAP Odyssey Aggressive Growth has 1.9% of the portfolio in cash.

Assets Under Management

The fund has $8 billion in total assets, which is above the $686 million average for the Mid-Cap Growth category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.

POAGX Performance and Fees

The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The PRIMECAP Odyssey Aggressive Growth expense ratio is above average compared to funds in the Mid-Cap Growth category. PRIMECAP Odyssey Aggressive Growth has an expense ratio of 0.66%, which is 40% lower than its category average, making the fund expense ratio grade a A. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.

High portfolio turnover can translate to higher expenses and lower aftertax returns. PRIMECAP Odyssey Aggressive Growth has a portfolio turnover rate of 11%, indicating that holds its assets around 0.1 years. By way of comparison, the average portfolio turnover is 76% for the Mid-Cap Growth category.

Recently, in the month of June 2026, PRIMECAP Odyssey Aggressive Growth returned 6.3%, which earned it a grade of A, as the Mid-Cap Growth category had an average return of 3.7%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.

PRIMECAP Odyssey Aggressive Growth has a trailing yield of 0.24%, which is above the 0.03% category average. The fund normally distributes its income annually and its capital gains annually.

It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.

PRIMECAP Odyssey Aggressive Growth Grades

Year to date, the fund has returned 31.1%, 19.3 percentage points better than the category, which translates into a grade of A. The fund has returned 62.2% over the past year (grade of A), 26.9% over the past three years (grade of A) and 12.1% per year over the past five years (grade of A) and 16.3% per year over the past 10 years (grade of A).

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