Investment notice: Fund tickers and brokerage names cited in this article (VOO, SPY, IVV, SPLG, FXAIX, SWPPX, VTI, and others) are for illustrative and comparison purposes only. This is not a recommendation to buy, sell, or hold any security. All investing involves risk, including possible loss of principal. Historical S&P 500 returns do not guarantee future results. Consult a financial advisor for personalized investment guidance.
Fund comparison methodology: Funds are compared on publicly available expense ratio, minimum investment, and fractional share availability data. Inclusion reflects broad market recognition, not a ranking by performance or suitability.
What Is the S&P 500?
The S&P 500 is a stock market index that tracks approximately 500 leading publicly traded companies in the United States, weighted by market capitalization. Contrary to a common misconception, the index does not simply consist of the 500 largest U.S. companies by size. Constituents are selected by a committee at S&P Dow Jones Indices using criteria that include market capitalization, financial viability, public float, and trading liquidity. Some large U.S. companies are not included in the index, and the composition changes over time as companies are added or removed.
The S&P 500 is not a company or a fund itself — it is a benchmark that fund providers replicate through index funds and ETFs. When people say they “invest in the S&P 500,” they mean buying a fund that holds all index constituents in proportion to the index weighting.
Overview
Aspect
Details
Full name
Standard & Poor’s 500
What it tracks
~500 leading US companies, selected by committee
Represents
~80% of US stock market value
Historical return
~10% annually (long-term average, before inflation)
Every major brokerage offers its own S&P 500 fund, and because they all track the same index, performance differences are expected to be minimal. The real distinction is cost: expense ratios range from 0.015% to 0.09%. The funds below are cited for comparison purposes only. The most practical option is typically the lowest-cost fund available at your existing broker.
Top ETFs
Fund
Ticker
Expense Ratio
Vanguard S&P 500 ETF
VOO
0.03%
iShares Core S&P 500 ETF
IVV
0.03%
SPDR S&P 500 ETF
SPY
0.09%
SPDR Portfolio S&P 500 ETF
SPLG
0.02%
Top Mutual Funds
Fund
Ticker
Expense Ratio
Fidelity 500 Index
FXAIX
0.015%
Schwab S&P 500 Index
SWPPX
0.02%
Vanguard 500 Index Admiral
VFIAX
0.04%
Common Fund Options by Broker
These are common low-cost options at each platform, cited for illustrative purposes. This is not a recommendation.
If You Use
Commonly Available Low-Cost Option
Fidelity
FXAIX (lowest cost)
Vanguard
VOO or VFIAX
Charles Schwab
SWPPX
Any broker
VOO or IVV
Active traders
SPY (highest liquidity)
Cost Comparison
Expense ratios compound over decades, so even small differences matter on large balances. On a $10,000 investment over 30 years, the gap between FXAIX (0.015%) and SPY (0.09%) is roughly $2,900 in lost returns. That said, SPY’s higher liquidity makes it the preferred choice for active traders who need tight bid-ask spreads.
Getting started takes less than 30 minutes. Open an account at a major brokerage, link your bank, fund the account, and buy your chosen S&P 500 fund. The single most important step is setting up automatic recurring investments so you continue buying regardless of market conditions.
Step-by-Step Process
Step
Action
Time
1
Choose a brokerage
5 min
2
Open an account
10-15 min
3
Fund your account
1-3 days
4
Buy S&P 500 fund
2 min
5
Set up automatic investing
5 min
Major Brokerages Offering S&P 500 Funds
Broker
Trading Fees
Fractional Shares
Min Investment
Fidelity
$0
Yes
$0
Vanguard
$0
Yes (ETFs)
$0
Charles Schwab
$0
Yes
$0
Robinhood
$0
Yes
$0
E*TRADE
$0
No
$0
Account Types
Account Type
Best For
Tax Treatment
Roth IRA
Retirement, tax-free growth
Tax-free withdrawals
Traditional IRA
Retirement, tax deduction
Taxable withdrawals
401(k)
Employer retirement plan
Tax-deferred
Taxable brokerage
Non-retirement goals
Taxed on gains
HSA
Healthcare + retirement
Triple tax advantage
Investment Strategies
Dollar-cost averaging — investing a fixed amount on a regular schedule — is the default strategy for most S&P 500 investors. Academic research shows that lump-sum investing outperforms dollar-cost averaging about two-thirds of the time, but dollar-cost averaging reduces the psychological pressure of committing a large sum at once. If market volatility would cause you to sell during a downturn, a gradual approach may help you stay invested.
Dollar-Cost Averaging (DCA)
Benefit
Explanation
Reduces timing risk
Buy at average price over time
Automates investing
Set and forget
Removes emotion
Buy regardless of market conditions
Accessible
Start with any amount
DCA Example ($500/Month for 1 Year)
Month
Price
Shares Bought
January
$450
1.11
February
$470
1.06
March
$430
1.16
April
$460
1.09
May
$480
1.04
June
$440
1.14
Total
Avg: $455
~6.6 shares
Lump Sum vs DCA
Method
Best When
Risk
Lump sum
Have money now, long-term horizon
Higher (all in at one price)
DCA
Regular income, nervous about timing
Lower (averaged entry)
Hybrid
Large windfall
Medium
Historically, lump sum has outperformed dollar-cost averaging approximately two-thirds of the time due to “time in market” compounding.
Historical Returns
The S&P 500 has delivered roughly 10% average annual returns before inflation over the long term. The modern S&P 500 was established in 1957; the 10% long-term average often cited incorporates predecessor index data extending back to the 1920s. Individual years vary widely — the index can decline 30% or gain 30% in a single year — but over long holding periods, the index has historically recovered from every downturn.
S&P 500 Performance
Period
Average Annual Return
1 year (varies)
-20% to +30%
5 years
8-14% average
10 years
10-12% average
20 years
9-11% average
Long-term average (before inflation)
~10%
Growth of $10,000
Investment Period
Final Value (10% avg)
10 years
$25,937
20 years
$67,275
30 years
$174,494
40 years
$452,593
With Monthly Contributions ($500/month + $10,000 initial)
Years
Total Invested
Final Value (10%)
10
$70,000
$122,907
20
$130,000
$416,132
30
$190,000
$1,138,529
ETF vs Mutual Fund
For long-term buy-and-hold investors, ETFs and mutual funds that track the same index are expected to perform similarly. The practical difference is how you buy: ETFs trade like stocks throughout the day and are generally more tax-efficient in taxable accounts, while mutual funds allow easy automatic investments at a set dollar amount. If your broker makes automatic ETF purchases easy, ETFs offer a slight advantage in taxable accounts; otherwise, mutual funds are a practical alternative.
Key Differences
Factor
ETF (VOO)
Mutual Fund (FXAIX)
Trading
Throughout day
End of day only
Minimum
Share price (or fractional)
Often $0
Tax efficiency
Generally higher
Lower
Automatic investing
Harder
Easy
Price transparency
Real-time
Daily NAV
When to Choose Each
Choose ETF If
Choose Mutual Fund If
Want real-time trading
Want automatic investing
Tax-efficiency matters
Simple recurring buys
Hold in taxable account
401(k) or IRA
Use any broker
Use fund company’s broker
Tax Considerations
Where you hold your S&P 500 fund matters as much as which fund you choose. In a Roth IRA, all growth and dividends are tax-free. In a taxable brokerage account, you will owe taxes on dividends each year and on capital gains when you sell. Prioritize tax-advantaged accounts first, and use a taxable account only after maximizing your IRA and 401(k) contributions. Tax thresholds are adjusted annually by the IRS; verify current-year rates at IRS.gov.
Taxable Account
Event
Tax Impact
Dividends (quarterly)
Taxed as qualified dividends
Selling at a gain
Capital gains tax
Selling at a loss
Can harvest for deductions
2026 Qualified Dividend and Long-Term Capital Gains Tax Rates (Single Filers)
Taxable Income
Rate
Under $49,150
0%
$49,150 to $551,350
15%
Over $551,350
20%
Source: IRS Rev. Proc. 2025-28. Thresholds adjusted annually for inflation. Verify current rates at IRS.gov before making tax decisions.
Tax-Advantaged Accounts
Account
Tax Benefit
Roth IRA
No tax on growth or withdrawals
Traditional IRA
Tax deduction now, pay later
401(k)
Tax-deferred growth
HSA
No tax on contributions, growth, or withdrawals (medical)
Common Questions
Why Not Buy Individual Stocks?
Factor
S&P 500 Index
Individual Stocks
Diversification
~500 companies
1 company
Research needed
None
Significant
Time required
Minimal
Substantial
Risk
Market risk
Company risk
Historical success
Beats most active stock pickers
Most underperform index
S&P 500 vs Total Market
Factor
S&P 500
Total Stock Market
Companies
~500 leading
3,000+ all sizes
Market coverage
~80%
~100%
Performance
Historically similar
Historically similar
Examples
VOO, FXAIX
VTI, FSKAX
When to Sell?
Reason to Sell
Reason NOT to Sell
Need the money for planned goal
Market is down
Rebalancing portfolio
You’re nervous
Tax-loss harvesting
Bad news headlines
Life circumstance change
Short-term volatility
Building a Portfolio
An S&P 500 fund can serve as the core holding in a broader portfolio. The appropriate allocation between stocks and bonds depends on your time horizon and risk tolerance. Adding an international index fund provides geographic diversification beyond the U.S. market.
Simple Portfolios Using S&P 500
Portfolio
Allocation
Risk Level
All stocks
100% S&P 500
Aggressive
Growth
90% S&P 500, 10% bonds
Moderate-aggressive
Balanced
70% S&P 500, 30% bonds
Moderate
Conservative
50% S&P 500, 50% bonds
Conservative
These are illustrative allocations only, not personalized investment advice. Appropriate allocation depends on your individual time horizon, risk tolerance, and financial situation.
Adding International Exposure
Portfolio
US (S&P 500)
International
Bonds
Aggressive
60%
30%
10%
Moderate
50%
20%
30%
Conservative
40%
10%
50%
Example 3-Fund Portfolio
Fund
Allocation
Example Funds
US stocks
60%
VOO, FXAIX
International stocks
30%
VXUS, FZILX
Bonds
10%
BND, FXNAX
Funds cited for illustrative purposes. Not a recommendation.
Mistakes to Avoid
One of the most frequently cited risks for individual investors is selling during a market downturn. Research from J.P. Morgan Asset Management indicates that missing a small number of the market’s best single days over a multi-decade period can significantly reduce overall returns. Because the best days often occur shortly after the worst days, investors who sell during periods of decline may miss the subsequent recovery.
Common Errors
Mistake
Why It Hurts
Solution
Timing the market
Miss best days
Stay invested
Checking too often
Emotional decisions
Monthly/quarterly review
Selling in panic
Lock in losses
Long-term mindset
Paying high fees
Erodes returns
Use low-cost funds
Not starting
Lose time/compounding
Start with any amount
Ignoring tax efficiency
Pay unnecessary taxes
Use right accounts
Market Timing Risk: Illustrative Example
The table below illustrates the potential impact of missing the market’s best trading days over a 30-year period. Data is illustrative based on published research from J.P. Morgan Asset Management.
Scenario
Illustrative Annual Return
Stayed fully invested
~9.9%
Missed best 5 days
~8.5%
Missed best 10 days
~7.3%
Missed best 20 days
~5.6%
Missed best 30 days
~4.1%
Source: J.P. Morgan Asset Management, Guide to the Markets. Past performance does not guarantee future results.
Frequently Asked Questions
Can I lose money in the S&P 500?
Yes, in the short term. The S&P 500 can decline 20%, 30%, or more during bear markets. Over long holding periods, the index has historically recovered from every downturn, but past performance does not guarantee future results. Investing in the S&P 500 is generally not appropriate for money you may need within five years.
Is now a good time to invest in the S&P 500?
Time in the market has historically outperformed attempts to time the market. If you have a long-term horizon, dollar-cost averaging reduces the pressure of picking a specific entry point.
Should I invest in S&P 500 or a target-date fund?
Target-date funds automatically rebalance and shift toward more conservative holdings as you approach a target retirement year. An S&P 500 fund provides more control but requires you to manage rebalancing yourself. Both can be sound approaches depending on your situation. Consult a financial advisor for personalized guidance.
How often does the S&P 500 pay dividends?
Most S&P 500 index funds distribute dividends quarterly. The yield is typically around 1.3 to 2% annually depending on the fund and market conditions. Dividends can be automatically reinvested to purchase additional shares.
Quick Start Checklist
Step
Action
Status
1
Open brokerage account
☐
2
Fund account (bank transfer)
☐
3
Buy an S&P 500 fund
☐
4
Set up automatic investment
☐
5
Reinvest dividends
☐
6
Review periodically, not daily
☐
Bottom Line
Factor
Notes
Low-cost ETF examples
VOO, IVV, SPLG (0.02-0.03% expense ratio)
Low-cost mutual fund example
FXAIX (0.015% expense ratio)
Major no-commission brokerages
Fidelity, Vanguard, Schwab
Minimum investment
$1 with fractional shares at supporting brokers
Investment strategy
Dollar-cost averaging
Time horizon
Long-term (typically 10+ years)
All funds and brokerages cited are for illustrative comparison purposes only. This is not a recommendation to buy, sell, or hold any security. All investing involves risk.
WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.
The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy
