A savings account is a deposit account held at a bank or credit union that pays interest on your balance. Because the funds are typically insured by the FDIC or NCUA (in the United States, up to applicable limits) and are not exposed to market price swings, a savings account is considered one of the lowest-risk places to hold cash. High-yield savings accounts, usually offered by online banks, tend to pay noticeably more interest than the national average because online banks have lower overhead costs than traditional branch-based banks.

The S&P 500 (ticker ^GSPC) is a stock market index that tracks the performance of 500 of the largest publicly traded companies in the United States, spanning nearly every major sector of the economy. It is widely used as a benchmark for the overall health of the U.S. stock market and as a proxy for a diversified equity investment. Investors commonly gain exposure to the S&P 500 through low-cost index funds or exchange-traded funds (ETFs) that mirror the index rather than by purchasing all 500 companies individually.

Savings accounts trade higher potential returns for stability and easy access to your money. Investing in the stock market trades that stability for the potential of significantly higher long-term returns, along with the possibility of short-term losses. Neither option is universally "better"; the right choice depends on your time horizon, how soon you may need the money, and your comfort with seeing your balance fluctuate from day to day.

A savings account tends to make more sense for money you may need on short notice, such as an emergency fund, a down payment you plan to use within the next one to three years, or any goal where losing even a small percentage of your balance right before you need it would be a real problem. Because the balance cannot decline the way an investment can, savings accounts remove the risk of having to withdraw money at a market low.

Investing tends to make more sense for long-term goals, generally five years or more away, such as retirement, where there is enough time to ride out short-term market declines. Historically, the U.S. stock market has delivered stronger average annual returns than savings accounts over long periods, though those returns come with year-to-year volatility that a savings account does not have.

Savings accounts offer predictable growth, same-day liquidity, and deposit insurance, but typically lag inflation and long-term market returns over time. Investing in the S&P 500 offers the potential for higher long-term growth and easy diversification across hundreds of companies, but comes with the risk of temporary or even multi-year declines and no guarantee of positive returns over any specific period.

Over long stretches of history, the S&P 500 has generally outperformed savings accounts and other cash-equivalent instruments on an average annual basis, largely because equities carry more risk and investors are compensated for bearing it. That said, past performance over any historical window, including the one you selected above, does not predict future results, and shorter windows in particular can show savings outperforming stocks or vice versa purely due to timing.

Unlike a savings account, money invested in the stock market is not insured and can lose value, including the possibility of losing a significant portion of your principal during a market downturn. The calculations on this page use historical closing prices only and exclude dividends, trading fees, taxes, and any recurring contributions, so real-world results from an actual brokerage account will differ. This tool is for educational purposes only and is not personalized financial, investment, or tax advice.