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SPYM vs. VOO
Performance
Return for Risk
Drawdowns
Volatility
Dividends

SPYM vs. VOO

Last updated Jun 19, 2026

SPYM (State Street SPDR Portfolio S&P 500 ETF) and VOO (Vanguard S&P 500 ETF) are both S&P 500 funds tracking the S&P 500 Index, from State Street and Vanguard respectively. Both are passively managed. Over the past 10 years, SPYM returned 15.57%/yr vs 15.55%/yr for VOO. Their correlation of 0.91 suggests significant overlap in exposure. SPYM charges 0.02%/yr vs 0.03%/yr for VOO.

Performance

SPYM vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR Portfolio S&P 500 ETF (SPYM) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

The year-to-date returns for both stocks are quite close, with SPYM having a 10.14% return and VOO slightly lower at 10.07%. Both investments have delivered pretty close results over the past 10 years, with SPYM having a 15.57% annualized return and VOO not far behind at 15.55%.

SPYM

1D
1.02%
1M
2.06%
YTD
10.14%
6M
11.35%
1Y
26.85%
3Y*
20.91%
5Y*
14.07%
10Y*
15.57%

VOO

1D
0.98%
1M
2.00%
YTD
10.07%
6M
11.29%
1Y
26.79%
3Y*
20.91%
5Y*
14.06%
10Y*
15.55%
*Multi-year figures are annualized to reflect compound growth (CAGR)

SPYM vs. VOO - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
SPYM
State Street SPDR Portfolio S&P 500 ETF		10.14%17.79%25.00%26.24%-18.09%28.78%18.49%31.99%-4.78%21.30%
VOO
Vanguard S&P 500 ETF		10.07%17.82%24.98%26.32%-18.17%28.79%18.32%31.37%-4.50%21.77%

Correlation

The correlation between SPYM and VOO is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

1.00

Correlation (3Y)
Calculated over the trailing 3-year period

1.00

Correlation (5Y)
Calculated over the trailing 5-year period

1.00

Correlation (10Y)
Calculated over the trailing 10-year period

0.99

Correlation (All Time)
Calculated using the full available price history since Sep 9, 2010

0.91

The correlation between SPYM and VOO has been stable across timeframes, ranging from 0.91 to 1.00 - a consistent structural relationship.

SPYM vs. VOO - Sectors Allocation Comparison

Sectors
SPYM
VOO

Technology

39.0%
35.6%

Financial Services

11.1%
11.6%

Communication Services

10.6%
11.1%

Consumer Cyclical

9.9%
10.1%

Healthcare

8.3%
8.5%

Industrials

7.8%
8.0%

Consumer Defensive

4.5%
4.9%

Energy

3.1%
3.5%

Utilities

2.1%
2.8%

Real Estate

1.8%
1.9%

Basic Materials

1.7%
1.8%

Technology

SPYM
39.0%
VOO
35.6%

Financial Services

SPYM
11.1%
VOO
11.6%

Communication Services

SPYM
10.6%
VOO
11.1%

Consumer Cyclical

SPYM
9.9%
VOO
10.1%

Healthcare

SPYM
8.3%
VOO
8.5%

Industrials

SPYM
7.8%
VOO
8.0%

Consumer Defensive

SPYM
4.5%
VOO
4.9%

Energy

SPYM
3.1%
VOO
3.5%

Utilities

SPYM
2.1%
VOO
2.8%

Real Estate

SPYM
1.8%
VOO
1.9%

Basic Materials

SPYM
1.7%
VOO
1.8%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

State Street SPDR Portfolio S&P 500 ETF

Vanguard S&P 500 ETF

Often compared with SPYM:
SPYM vs. SPYSPYM vs. QQQMSPYM vs. SPMOSPYM vs. VTISPYM vs. SPYGSPYM vs. SCHGSPYM vs. FXAIX
Often compared with VOO:
VOO vs. VTIVOO vs. QQQVOO vs. SCHDVOO vs. VTVOO vs. SPYVOO vs. FXAIXVOO vs. IVV

Return for Risk

SPYM vs. VOO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
SPYM
SPYM Risk / Return Rank: 7272
Overall Rank
SPYM Sharpe Ratio Rank: 7474
Sharpe Ratio Rank
SPYM Sortino Ratio Rank: 7070
Sortino Ratio Rank
SPYM Omega Ratio Rank: 7373
Omega Ratio Rank
SPYM Calmar Ratio Rank: 6565
Calmar Ratio Rank
SPYM Martin Ratio Rank: 7777
Martin Ratio Rank
VOO
VOO Risk / Return Rank: 7272
Overall Rank
VOO Sharpe Ratio Rank: 7474
Sharpe Ratio Rank
VOO Sortino Ratio Rank: 7070
Sortino Ratio Rank
VOO Omega Ratio Rank: 7272
Omega Ratio Rank
VOO Calmar Ratio Rank: 6565
Calmar Ratio Rank
VOO Martin Ratio Rank: 7777
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SPYM vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR Portfolio S&P 500 ETF (SPYM) and Vanguard S&P 500 ETF (VOO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

SPYMVOODifference
Sharpe ratioReturn per unit of total volatility
2.18
2.18

+0.01

Sortino ratioReturn per unit of downside risk
2.94
2.93

+0.01

Omega ratioGain probability vs. loss probability

1.40

1.39

0.00

Calmar ratioReturn relative to maximum drawdown

3.03

3.02

+0.01

Martin ratioReturn relative to average drawdown

13.64

13.61

+0.03

SPYM vs. VOO - Sharpe Ratio Comparison

The current SPYM Sharpe Ratio is 2.18, which is comparable to the VOO Sharpe Ratio of 2.18. The chart below compares the historical Sharpe Ratios of SPYM and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

SPYM vs. VOO - Drawdown Comparison

The maximum SPYM drawdown since its inception was -54.46%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for SPYM and VOO.

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Drawdown Indicators

SPYMVOODifference

Max Drawdown

Largest peak-to-trough decline

-54.46%

-33.99%

-20.47%

Max Drawdown (1Y)

Largest decline over 1 year

-8.90%

-8.90%

0.00%

Max Drawdown (3Y)

Largest decline over 3 years

-18.72%

-18.69%

-0.03%

Max Drawdown (5Y)

Largest decline over 5 years

-24.48%

-24.52%

+0.04%

Max Drawdown (10Y)

Largest decline over 10 years

-33.87%

-33.99%

+0.12%

Current Drawdown

Current decline from peak

-1.42%

-1.45%

+0.03%

Average Drawdown

Average peak-to-trough decline

-7.14%

-3.68%

-3.46%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.97%

1.97%

0.00%

Volatility

SPYM vs. VOO - Volatility Comparison

State Street SPDR Portfolio S&P 500 ETF (SPYM) and Vanguard S&P 500 ETF (VOO) have volatilities of 4.70% and 4.69%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

SPYMVOODifference

Volatility (1M)

Calculated over the trailing 1-month period

4.70%

4.69%

+0.01%

Volatility (6M)

Calculated over the trailing 6-month period

9.81%

9.79%

+0.02%

Volatility (1Y)

Calculated over the trailing 1-year period

12.37%

12.37%

0.00%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

16.89%

16.90%

-0.01%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

18.04%

18.05%

-0.01%

SPYM vs. VOO - Expense Ratio Comparison

SPYM has a 0.02% expense ratio, which is lower than VOO's 0.03% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

SPYM vs. VOO - Dividend Comparison

SPYM's dividend yield for the trailing twelve months is around 1.28%, more than VOO's 1.04% yield.

PositionTTM20252024202320222021202020192018201720162015
SPYM
State Street SPDR Portfolio S&P 500 ETF		1.28%1.13%1.28%1.44%1.69%1.25%1.54%1.79%2.23%1.75%1.97%1.98%
VOO
Vanguard S&P 500 ETF		1.04%1.13%1.24%1.46%1.69%1.25%1.54%1.88%2.06%1.78%2.02%2.10%

Frequently Asked Questions

With a correlation of 1.00, SPYM and VOO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

SPYM has higher volatility (4.70%) compared to VOO (4.69%). In terms of maximum drawdown, SPYM dropped -54.46% vs VOO's -33.99%.

On 10-year performance, SPYM leads with 15.57% vs 15.55% for VOO. On fees, SPYM is cheaper at 0.02% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, SPYM has performed better with a 15.57% return vs 15.55%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

SPYM is cheaper with a 0.02% expense ratio, compared with 0.03% for VOO.

SPYM has the higher dividend yield at 1.28%, compared with 1.04% for VOO.

Both ETFs track S&P 500 Index. They also come from different issuers: State Street and Vanguard. Their fees differ too: 0.02% for SPYM and 0.03% for VOO.

SPYM currently has the higher Sharpe Ratio (2.18 vs 2.18), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.

Portfolio Optimizer

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