The Vanguard S&P 500 ETF (VOO) tracks the performance of 500 of America’s largest publicly traded companies with an ultra-low expense ratio of 0.03%. Since its inception, VOO has delivered a five-year average annual return of 14.55%, a ten-year average of 15.61% and a fifteen-year average of 14.00%. The fund holds more than 500 constituents, with the top 10 positions accounting for roughly 28% of assets under management. This broad diversification across sectors such as information technology, health care and consumer discretionary provides investors with core equity market exposure at a fraction of the cost of actively managed products.

VOO’s expense ratio of 0.03% translates to an annual fee of just $0.30 per $1,000 invested, making it one of the cheapest vehicles for accessing the S&P 500. By comparison, its largest rival, the SPDR S&P 500 ETF (SPY), carries an expense ratio of approximately 0.09%, more than three times higher. Over a 30-year holding period, this fee differential can shave off more than 0.8% of annualized return, which could reduce a $100,000 investment to nearly $20,000 less in value at retirement.

VOO combines the cost efficiency of Vanguard’s traditional ETF structure with sufficient trading liquidity, averaging daily volume of around 7 million shares. SPY, by contrast, trades roughly 80 million shares per day and benefits from tighter average bid-ask spreads, often below one cent per share. While SPY’s liquidity advantages may appeal to high-frequency traders and institutional arbitrage desks, most long-term buy-and-hold investors will find VOO’s slightly wider spreads negligible in the context of its lower ongoing expenses.

For investors focused on total return over decades rather than short-term trading, VOO’s combination of low costs, broad diversification and strong historical performance makes it a compelling core holding. Vanguard estimates that an investor allocating $10,000 today and reinvesting all dividends at the fund’s current five-year yield of 1.13% would accumulate approximately $54,000 over ten years, assuming historical market returns. Given the power of fee savings compounded over time, VOO remains the preferred option for retirement and taxable accounts where minimizing drag on returns is paramount.