The Vanguard PRIMECAP Core Fund operates with a long-term vision, remarkably low portfolio turnover, and a consistently applied investment methodology, echoing the philosophy of its sister fund, PRIMECAP. Where it diverges from its sibling PRIMECAP, which exclusively seeks growth stocks, is its balanced approach, investing in companies that display both value and growth characteristics. Investors should be aware of a potential concentration risk, as the fund may heavily weight its portfolio in particular sectors, notably technology and healthcare.