An ETF is a basket of securities that trades on an exchange like a stock. ETFs track an index, sector, commodity, or strategy, offering diversification in a single trade with low fees.
ETF Price ≈ NAV = Sum of Holdings Values / Shares Outstanding
SPY tracks the S&P 500 — buying one share gives you proportional exposure to all 500 companies. VTI gives you the entire US stock market. ETFs trade throughout the day unlike mutual funds.
AllInvestView tracks ETFs with full analytics. Read our complete ETF investing guide.