A mutual fund is a professionally managed investment vehicle that pools money from many investors to purchase a diversified portfolio of securities. Think of it as a financial potluck: instead of bringing one big dish (investing all your money in a single company), you and many others chip in to create a giant buffet of different investments, like stocks, bonds, and other assets. Each investor owns “shares” in the fund, which represent a portion of this collective portfolio. The fund is run by a fund manager (or a team of them) who decides what to buy and sell, based on the fund's stated investment objective. This could be anything from tracking a specific market index to seeking out high-growth technology companies or stable, dividend-paying giants. The value of your shares, known as the Net Asset Value (NAV), rises and falls with the performance of the underlying investments.
The mechanics are quite straightforward. When you invest in a mutual fund, you're buying shares of the fund itself, not the individual stocks or bonds it holds. The price you pay per share is the Net Asset Value (NAV). The NAV is calculated once per day, after the markets close. The formula is simple: (Total Market Value of All Assets - Total Liabilities) / Total Number of Shares Outstanding = NAV So, if a fund holds $100 million in assets, has $2 million in liabilities (like management fees owed), and has issued 5 million shares to investors, its NAV would be ($98 million / 5 million shares) = $19.60 per share. All buy and sell orders placed during the day are executed at this end-of-day price. This is different from individual stocks, whose prices fluctuate throughout the trading day.
Mutual funds offer a compelling mix of benefits and drawbacks. For a value investor, understanding both is critical.
This is where a healthy dose of skepticism, a hallmark of the value investing philosophy, comes in.
Warren Buffett famously advised that the average investor's best bet is not to try and pick winning stocks, nor is it to try and pick winning active fund managers. The data overwhelmingly shows that most active managers fail to beat the market average over the long term, especially after their high fees are taken into account. So, what's the solution? For most people, the answer lies in a specific type of low-cost mutual fund: the index fund. An index fund doesn't try to be clever or beat the market. It simply aims to match the performance of a specific market index, like the S&P 500, by holding all the stocks in that index. Because there's no high-paid manager making active bets, the fees (the expense ratio) are incredibly low. For a value investor, this approach is beautiful in its simplicity and effectiveness. You get broad diversification and market-level returns, all while keeping the corrosive effect of fees to an absolute minimum. It’s the closest thing to a “set it and forget it” strategy that aligns with the core value principle of not overpaying for an asset—in this case, the asset of investment management. While finding a truly skilled active manager is like finding a needle in a haystack, buying the whole haystack via a low-cost index fund is a strategy available to everyone.