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SPY vs. VOO

SPDR S&P 500 ETF Trust

SPY
$
Today’s Change
()
vs

Vanguard S&P 500 ETF

VOO
$
Today’s Change
()

Correlation

1.00
1M
3M
6M
YTD
1Y
3Y
Max

Performance Measures**

for the time period Jan 29, 1993 to Dec 4, 2025

Returns

1M Trailing Return:

3M Trailing Return:

SPY

1.4%

5.7%

VOO

1.3%

5.8%

Diff.

+0.1%

-0.1%

Measures of Risk or Volatility

Max Drawdown:

Standard Deviation:

SPY

-55.2%

18.7%

VOO

-34.0%

17.2%

Diff.

-21.2%

+1.5%

Measures of Risk-Adjusted Performance

Sharpe Ratio:

Calmar Ratio:

SPY

0.64

0.19

VOO

0.89

0.44

Diff.

-0.25

-0.25

SPYSPDR S&P 500 ETF Trust
VOOVanguard S&P 500 ETF

What is SPY?

The SPDR S&P 500 ETF is a fund that before expenses generally corresponds to the price and yield performance of the S&P 500 Index.

Snapshot
**

SPY SPDR S&P 500 ETF Trust
VOO Vanguard S&P 500 ETF
Inception date
Jan 22, 1993
Sep 7, 2010
Expense ratio
0.09%
0.03%
SPY has a higher expense ratio than VOO by 0.06%. This can indicate that it’s more expensive to invest in SPY than VOO.
Type
US Equities
US Equities
SPY targets investing in US Equities, while VOO targets investing in US Equities.
Fund owner
State Street (SPDR)
Vanguard
SPY is managed by State Street (SPDR), while VOO is managed by Vanguard.
Volume (1m avg. daily)
$33,257,618,740
$1,621,694,598
Both SPY and VOO are considered high-volume assets. They’re less likely to be affected by issues like slippage and failed orders on Composer than low-volume assets.
AUM
$400,404,126,565
$325,714,712,538
SPY has more assets under management than VOO by $74,689,414,027. Higher AUM can be associated with better liquidity and lower slippage in trading.
Associated index
S&P 500 Index
S&P 500 Index
SPY is based off of the S&P 500 Index, while VOO is based off of the S&P 500 Index
Inverse/Leveraged
No
No
Neither SPY nor VOO use an inverse or leveraged strategy.
Passive/Active
Passive
Passive
SPY and VOO both use a Passive investing strategy. In an actively managed fund, the fund manager makes decisions about how funds are invested. A passively managed fund typically tries to track or follow a market index.
Dividend
No
No
SPY and VOO may offer dividends. The frequency and yield of the dividend may not be the same.
Prospectus
SPY may issue a K1, while VOO does not. You can find non-K1 alternatives for SPY in its “Related ETFs” section.
SPY and VOO’s Correlation
When ETFs are correlated, there are 3 main topics to analyze that will help you build your automated trading strategy: liquidity, expense, and risk.
  • Liquidity: In an active trading strategy (trading multiple time per week), it’s important to consider the liquidity of the ETF you’re using. Lower liquidity can mean more money lost in slippage. AUM and average daily volume are both indicators of liquidity.
  • Expense: Some ETFs are more expensive to use than others. For strategies that are focused on longer holding periods, it’s important to factor in how expensive it is to hold this ETF. Expense ratio is the main indicator of how expensive an ETF is.
  • Risk: Some ETFs will be highly correlated, but have varying degrees of returns, due to leverage. It’s important to consider if an ETF is using leverage or not. The main indicators of a riskier ETF will be the use of leverage and higher standard deviation or max drawdown in a backtest.

Trading Strategies
Related toSPY

Inside Nancy Pelosi's Chips- V3

Category

Semiconductors, mean reversion, momentum, trend filter, RSI, leveraged ETFs, tactical, energy, commodities

OOS Cumulative Return

1775.5%

Trading Strategies
Related toVOO

FTL's 🌟 Starburst GEN-II v1.c w/ BWC Ultimate FR [Removed BB] Added Walter's Champagne and Cocaine Strats and NOVA | (multiple TQQQ, one crypto) KMLM Switcher MonkeyBusiness WM74 + Wash

Category

Tactical multi-asset, leveraged ETFs, volatility hedging, managed futures, mean reversion, momentum, regime switching, daily rebalancing

OOS Cumulative Return

208.65%

Create your own algorithmic
trading strategy

Disclaimers

*

We show information directly obtained from our data provider, Xignite. Data shown here is provided by Xignite, an unaffiliated third party. Composer believes the information shown here is reliable, but has not been verified and there is no guarantee that the information is accurate.

**

We show information based on calculations performed by Composer using data from our provider. Information provided here is based on calculations performed by Composer using data sourced from Xignite, an unaffiliated third party. Composer believes this information is reliable, but has not verified the data and there is no guarantee that the calculations are accurate.