This large and mid-capitalization growth fund is managed with a long-term outlook， has employed a distinct strategy where multiple portfolio managers independently oversee portions of the fund， PRIMECAP Management Company， notably technology and health care. Such focus can lead to heightened short-term performance volatility when these industries experience significant shifts. This fund is generally best considered a complementary addition to an already diversified portfolio for investors with an extended time horizon. Fund Family Vanguard Category Large Blend Performance Rating High Risk Rating Above Average Stock Exchange NASDAQ Ticker Symbol VPMAX Share Class Admiral Shares Index SP 500 TR ，。
thereby promoting a broad range of investment ideas. A key risk is its potential for significant concentration in specific sectors， exceptionally low portfolio turnover， the advisor， and a well-established investment framework. Since its inception in 1984。