A mutual fund is a professionally managed pool of money from thousands of investors. You put in $1,000, others put in their amounts, and a fund manager invests the combined pool according to the fund's strategy. You own units proportional to your investment. It is the easiest way for ordinary people to access diversified, professional investing.
Major types: equity funds (invest in stocks), debt funds (invest in bonds), hybrid funds (mix of both), and index funds (track a benchmark). The global mutual fund industry manages over $63 trillion in assets. In India, mutual fund AUM crossed Rs 60 lakh crore in 2024, with SBI, HDFC, and ICICI Prudential as the largest fund houses.
Fees matter enormously over time. An expense ratio of 1.5% vs. 0.1% can cost you 30% of your wealth over 30 years due to compounding. SEBI's regulation of expense ratios and the rise of direct plans have significantly reduced costs for Indian investors. SIP (Systematic Investment Plan) investing — putting a fixed amount monthly — has become India's most popular wealth-building strategy.