SPYM vs. VOO

Last updated Apr 1, 2026

Compare and contrast key facts about State Street SPDR Portfolio S&P 500 ETF (SPYM) and Vanguard S&P 500 ETF (VOO).

SPYM and VOO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SPYM is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Nov 8, 2005. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010. Both SPYM and VOO are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

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.

SPYM vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPYM State Street SPDR Portfolio S&P 500 ETF	-4.35%	17.79%	25.00%	26.24%	-18.09%	28.78%	18.49%	31.99%	-4.78%	21.30%
VOO Vanguard S&P 500 ETF	-4.42%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Returns By Period

The year-to-date returns for both stocks are quite close, with SPYM having a -4.35% return and VOO slightly lower at -4.42%. Both investments have delivered pretty close results over the past 10 years, with SPYM having a 14.13% annualized return and VOO not far behind at 14.05%.

SPYM

• 1D: 2.90%
• 1M: -4.99%
• YTD: -4.35%
• 6M: -1.77%
• 1Y: 17.73%
• 3Y*: 18.27%
• 5Y*: 11.77%
• 10Y*: 14.13%

VOO

• 1D: 2.86%
• 1M: -5.01%
• YTD: -4.42%
• 6M: -1.84%
• 1Y: 17.67%
• 3Y*: 18.27%
• 5Y*: 11.75%
• 10Y*: 14.05%

*Multi-year figures are annualized to reflect compound growth (CAGR)

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%.

VOO

Vanguard S&P 500 ETF

SPYM

State Street SPDR Portfolio S&P 500 ETF

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: 65
SPYM Sharpe Ratio Rank: 59
SPYM Sortino Ratio Rank: 62
SPYM Omega Ratio Rank: 66
SPYM Calmar Ratio Rank: 65
SPYM Martin Ratio Rank: 75

VOO

VOO Risk / Return Rank: 65
VOO Sharpe Ratio Rank: 59
VOO Sortino Ratio Rank: 62
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 65
VOO Martin Ratio Rank: 75

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.

	SPYM	VOO	Difference
Sharpe ratio Return per unit of total volatility	0.98	0.98	0.00
Sortino ratio Return per unit of downside risk	1.49	1.50	-0.01
Omega ratio Gain probability vs. loss probability	1.23	1.23	0.00
Calmar ratio Return relative to maximum drawdown	1.53	1.53	0.00
Martin ratio Return relative to average drawdown	7.31	7.29	+0.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPYM vs. VOO - Sharpe Ratio Comparison

The current SPYM Sharpe Ratio is 0.98, which is comparable to the VOO Sharpe Ratio of 0.98. The chart below compares the historical Sharpe Ratios of SPYM and VOO, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SPYM	VOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.98	0.98	0.00
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	0.70	0.00
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.79	0.78	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.58	0.83	-0.25

Correlation

The correlation between SPYM and VOO is 0.91, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

SPYM vs. VOO - Dividend Comparison

SPYM's dividend yield for the trailing twelve months is around 1.16%, less than VOO's 1.19% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SPYM State Street SPDR Portfolio S&P 500 ETF	1.16%	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	1.19%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

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.

Drawdown Indicators

	SPYM	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-54.46%	-33.99%	-20.47%
Max Drawdown (1Y) Largest decline over 1 year	-12.02%	-11.98%	-0.04%
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	-6.26%	-6.29%	+0.03%
Average Drawdown Average peak-to-trough decline	-7.21%	-3.72%	-3.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.52%	2.52%	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 5.28% and 5.29%, 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.

Volatility by Period

	SPYM	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.28%	5.29%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	9.46%	9.44%	+0.02%
Volatility (1Y) Calculated over the trailing 1-year period	18.24%	18.10%	+0.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.81%	16.82%	-0.01%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.99%	17.99%	0.00%