US ETF or stockVOOETF

Vanguard S&P 500 ETF Calculator

VOO tracks the S&P 500 and is commonly used for broad U.S. large-cap exposure.

What to Check

  • Often used as a core long-term U.S. equity holding.
  • A low-cost, straightforward index ETF.

Risks Before Rebalancing

  • It remains exposed to broad U.S. large-cap drawdowns.
  • Top mega-cap concentration can increase over time.

How to Use the Calculator

  1. 1.Add Vanguard S&P 500 ETF to the portfolio.
  2. 2.Enter shares, cash, and target allocation.
  3. 3.Review whether the holding is overweight or underweight and check suggested buy or sell quantities.

Weight Calculation Basis

The rebalancing calculator compares Vanguard S&P 500 ETF's current market value, portfolio cash, and other holdings against your target allocation. Actual order quantities can vary with price, FX, fees, and minimum order rules, so use the result as a pre-trade check.

When This Page Helps

Use this page before a new purchase, when setting a target weight, or when deciding whether to trim an oversized Vanguard S&P 500 ETF position. In a multi-asset portfolio, reviewing total weight and volatility contribution is more useful than looking at the holding in isolation.

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US EquitiesUpdated 2026-04-19

Best S&P 500 ETFs in 2026

Compare VOO, SPY, IVV, SPLG, RSP by fees, dividend yield, portfolio role, and rebalancing use case. Find the best S&P 500 ETFs for your 2026 portfolio.

Quick Verdict

S&P 500 ETFs: top picks at a glance

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Best overall

VOO

Best for Long-term, Ultra-low Cost

Lowest fee

SPLG

0.02%

Highest yield

RSP

1.6%

ETF Comparison Table

Scan the top ETFs by fee, dividend yield, and portfolio role before using the rebalancing calculator.

RankETFBest forExpenseYield
#1VOOVanguard S&P 500 ETFBest for Long-term, Ultra-low Cost0.03%1.3%
#2SPYSPDR S&P 500 ETF TrustHighest Volume, World's First ETF0.09%1.2%
#3IVViShares Core S&P 500 ETFBlackRock Managed, On Par with VOO0.03%1.3%
#4SPLGSPDR Portfolio S&P 500 ETFLowest Fee 0.02%, Low Share Price0.02%1.3%
#5RSPInvesco S&P 500 Equal Weight ETFEqual-Weight Diversification0.20%1.6%
#6ITOTiShares Core S&P Total U.S. Stock Market ETFTotal U.S. Market Coverage0.03%1.3%

Use These ETF Picks in the Rebalancing Calculator

Add the top ETF candidates to the portfolio calculator, set target weights, and check whether your current allocation needs buy or sell adjustments.

Open rebalancing calculatorView all ETF recommendationsVOO calculatorSPY calculatorSPLG calculator

Related ETF Comparisons

Compare the closest ETF alternatives before deciding final portfolio weights.

SPYvsVOO

Compare the two flagship S&P 500 ETFs by fee, liquidity, and portfolio role.

View comparison

Top 4 S&P 500 ETFs Rankings

1
VOOVanguard S&P 500 ETFBest for Long-term, Ultra-low Cost

Vanguard's flagship S&P 500 ETF offers an ultra-low 0.03% expense ratio and exceptional operational stability. With over $500 billion in net assets, it is one of the world's largest ETFs. Vanguard's investor-first philosophy makes VOO the most popular choice among long-term S&P 500 investors.

Expense 0.03%Div 1.3%
2
SPYSPDR S&P 500 ETF TrustHighest Volume, World's First ETF

Launched in 1993, SPY is the world's first and most-traded ETF with unmatched daily trading volume of tens of millions of shares. Its deep options market and tight spreads make it the go-to choice for active traders and institutional investors. The 0.09% expense ratio is higher than competitors, but the liquidity premium is worth it for large trades.

Expense 0.09%Div 1.2%
3
IVViShares Core S&P 500 ETFBlackRock Managed, On Par with VOO

BlackRock's iShares Core S&P 500 ETF matches VOO's ultra-low 0.03% expense ratio with equally impressive net assets and trading volume. Backed by BlackRock's global investment infrastructure, IVV delivers virtually identical performance to VOO, making it a convenient choice for investors already holding iShares products.

Expense 0.03%Div 1.3%
4
SPLGSPDR Portfolio S&P 500 ETFLowest Fee 0.02%, Low Share Price

State Street's low-cost S&P 500 ETF offers the industry's lowest expense ratio at just 0.02%. With a share price in the $60–70 range — far lower than VOO ($500+) or SPY ($500+) — SPLG is highly accessible for smaller investors. It delivers the best cost-efficiency for long-term dollar-cost averaging strategies.

Expense 0.02%Div 1.3%
5
RSPInvesco S&P 500 Equal Weight ETFEqual-Weight Diversification

RSP holds all 500 S&P 500 stocks at equal weights (~0.2% each), addressing the mega-cap tech concentration of cap-weighted ETFs and balancing exposure to mid-cap names.

Expense 0.20%Div 1.6%
6
ITOTiShares Core S&P Total U.S. Stock Market ETFTotal U.S. Market Coverage

ITOT extends beyond the S&P 500 to cover the entire U.S. stock market (~3,500 names), including small/mid caps for broader market diversification.

Expense 0.03%Div 1.3%

Table of Contents

  1. 1. Key Factors for Choosing an S&P 500 ETF
  2. 2. S&P 500 ETF Strategy for Long-term Investors
  3. 3. Building a Portfolio Around S&P 500 ETFs

The S&P 500 is the world's most-followed benchmark, comprising 500 of America's largest companies. Famously endorsed by Warren Buffett as "the best investment for most people," S&P 500 ETFs provide the most efficient way to gain diversified exposure to the entire U.S. economy. While VOO, SPY, IVV, and SPLG all track the same index, they differ in expense ratios, trading volume, and fund structure. This guide compares them to help you choose the optimal ETF for long-term investing.

1. Key Factors for Choosing an S&P 500 ETF

Since all S&P 500 ETFs track the same index, return differences are negligible. The real differentiators are expense ratio, trading volume (liquidity), share price (accessibility), and dividend handling. VOO and IVV offer ultra-low 0.03% expense ratios ideal for long-term holding, while SPLG leads the pack at just 0.02%. SPY charges a relatively higher 0.09% but commands the world's highest trading volume — making it the preferred choice for short-term trading and options strategies.

2. S&P 500 ETF Strategy for Long-term Investors

For investment horizons of 10+ years, expense ratios matter most. Even a 0.01% difference compounds significantly over time. For example, on a $100,000 investment, the annual fee difference between SPY (0.09%) and SPLG (0.02%) is about $70 — which grows to thousands of dollars over 20 years with compounding. Long-term investors should choose from VOO, IVV, or SPLG. If your investment amount is small, SPLG's lower share price (~$60–70) offers better accessibility than VOO or SPY (both $500+).

3. Building a Portfolio Around S&P 500 ETFs

S&P 500 ETFs serve as the core holding in most investment portfolios. A typical allocation places 40–70% in an S&P 500 ETF, with the remainder diversified across international equities (VXUS), bonds (BND, AGG), and small-cap ETFs. If you want concentrated U.S. exposure, a single S&P 500 ETF provides instant diversification across 500 blue-chip companies spanning every major sector of the American economy.

Key Investment Tips

  • 1.For long-term investing (10+ years), choose SPLG (0.02%) or VOO (0.03%) for the lowest ongoing costs.
  • 2.SPY has the highest expense ratio among peers but offers unmatched liquidity for large trades and options.
  • 3.Use an S&P 500 ETF as your portfolio core — a 40–70% allocation is a common starting point.
  • 4.Dollar-cost averaging with monthly fixed investments effectively reduces market timing risk.

FAQ

Which S&P 500 ETF is the best among VOO, SPY, IVV, and SPLG?
All four track the same S&P 500 index, so returns are nearly identical. For long-term investors, SPLG (0.02%) or VOO (0.03%) offer the lowest costs. For active trading or options, SPY provides unmatched liquidity. If you already hold iShares products, IVV is a convenient fit for portfolio management.
What is the average return of S&P 500 ETFs?
The S&P 500 index has historically delivered approximately 10–11% average annual returns (including dividend reinvestment). However, this is a long-term (20+ year) average — short-term drawdowns exceeding -30% have occurred (2008 financial crisis, 2020 COVID crash). After adjusting for inflation, real returns are about 7–8%. While past performance doesn't guarantee future results, S&P 500 investing remains the most proven way to bet on long-term U.S. economic growth.
How much should I invest monthly in S&P 500 ETFs?
The ideal amount depends on your income and expenses, but a common guideline is 10–20% of monthly income. Even small amounts invested consistently through dollar-cost averaging can reduce market timing risk and maximize the power of compounding. If the share price feels too high, start with SPLG ($60–70 range) or use a brokerage that supports fractional share purchases.
Should I invest in S&P 500 ETFs or Nasdaq 100 ETFs (QQQ)?
S&P 500 ETFs offer broader diversification across 500 large-cap stocks with higher stability, while Nasdaq 100 ETFs (QQQ) are tech-heavy with higher growth potential but greater volatility. For steady long-term investing, use an S&P 500 ETF as your core holding. To add tech growth exposure, consider a 60–70% S&P 500 ETF + 30–40% QQQ split. Note that holding both increases your tech sector concentration.

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