PRIMECAP Odyssey Stock Fund
Actively managed U.S. stock fund
As of its 2026 Q2 report, PRIMECAP Odyssey Stock Fund held 148 positions with $4.44B in net assets. Its ten largest holdings made up 34.9% of the fund. The POSKX share class costs 0.67% a year. Over the 12 months to May 2026, POSKX returned 51.8%, with dividends reinvested. In 2026 Q3 it added 6 new positions and exited 5.
The PRIMECAP Odyssey Stock Fund seeks to provide long-term capital appreciation.
The fund invests primarily in U.S. common stocks selected through fundamental research to identify companies trading at reasonable valuations relative to their growth prospects and profitability, with a three- to five-year investment horizon and no requirement to track an index. The Advisor may maintain significant overweight or underweight positions in particular sectors relative to the S&P 500 and may also invest substantial assets in foreign securities. Because the fund's returns depend on the Advisor's security selection rather than index replication, performance may diverge materially from the S&P 500.
What you own
| Company | Weight | Value | Shares | Reported price |
|---|---|---|---|---|
INTCIntel Corp | 8.17% | $362.68M | 3.8M | $94.48 |
4.88% | $216.77M | 231.9K | $934.60 | |
AstraZeneca PLC | 3.95% | $175.18M | 934.9K | $187.37 |
KLACKLA Corp | 3.10% | $137.64M | 78.6K | $1,750.35 |
Flex Ltd | 2.99% | $132.93M | 1.5M | $91.55 |
FDXFedEx Corp | 2.51% | $111.56M | 276.6K | $403.31 |
Siemens AG | 2.46% | $109.08M | 368.0K | $296.41 |
ROSTRoss Stores Inc | 2.33% | $103.46M | 454.2K | $227.79 |
BIIBBiogen Inc | 2.27% | $100.91M | 533.1K | $189.28 |
MSFTMicrosoft Corp | 2.26% | $100.29M | 245.9K | $407.78 |
Reported price is the fund's own reported value divided by its own reported shares at 2026-04-30 — not a live quote, and not what the fund paid.
All 148 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Stocks | 97.82% |
| Cash & short-term | 2.17% |
By sector
- Information Technology
- 25.4%
- Industrials
- 18.4%
- Health Care
- 18.2%
- Financials
- 10.8%
- 9 other sectors
- 27.2%
- Information Technology
- 25.4%
- Industrials
- 18.4%
- Health Care
- 18.2%
- Financials
- 10.8%
- International
- 10.7%
- Consumer Discretionary
- 4.8%
- Communication Services
- 2.8%
- Consumer Staples
- 2.6%
- Energy
- 2.0%
- Cash
- 1.8%
- Other
- 1.7%
- Materials
- 0.7%
- Utilities
- 0.1%
How it has done
POSKX share class · total returns with dividends reinvested
Volatility over the last 12 months: 14.99%. Past returns are a record, not a forecast.
Jun 2026 and Jul 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Fees & fund details
PRIMECAP Odyssey Stock Fund is an actively managed U.S. equity fund. 14% of POSKX’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 81% of the fund’s equity).
- Asset class
- Equity
- Region
- United States
- Management
- Actively managed
- Fund type
- Open-end fund
- Expense ratio, by class
- 0.67%· POSKX 0.67%
- Portfolio turnover
- 9.00% a year · as of 2026 Q1
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
6 new
5 exited
Understand how this fund fits with the rest.
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