SSDOX vs. SVSPX

Last updated Aug 1, 2026

SSDOX (State Street Target Retirement 2055 Fund) and SVSPX (State Street S&P 500 Index Fund Class N) are both mutual funds - SSDOX is a Target Retirement Date fund managed by State Street, while SVSPX is a Large Cap Blend Equities fund tracking the S&P 500 Index. Over the past 10 years, SSDOX returned 10.60%/yr vs 14.85%/yr for SVSPX. Their correlation of 0.89 means they have usually moved in the same direction. SSDOX charges 0.21%/yr vs 0.16%/yr for SVSPX.

Performance

SSDOX vs. SVSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Target Retirement 2055 Fund (SSDOX) and State Street S&P 500 Index Fund Class N (SVSPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSDOX achieves a 10.00% return, which is significantly higher than SVSPX's 9.27% return. Over the past 10 years, SSDOX has underperformed SVSPX with an annualized return of 10.60%, while SVSPX has yielded a comparatively higher 14.85% annualized return.

SSDOX

• 1D: 1.99%
• 1M: -0.97%
• 6M: 6.57%
• YTD: 10.00%
• 1Y: 21.40%
• 3Y*: 15.55%
• 5Y*: 8.07%
• 10Y*: 10.60%
• ALL TIME*: 9.62%

SVSPX

• 1D: 1.66%
• 1M: -0.57%
• 6M: 7.27%
• YTD: 9.27%
• 1Y: 18.70%
• 3Y*: 19.00%
• 5Y*: 12.57%
• 10Y*: 14.85%
• ALL TIME*: 10.56%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
SSDOX State Street Target Retirement 2055 Fund	$0.00	$0.00	$0.00
SVSPX State Street S&P 500 Index Fund Class N	$0.00	$0.00	$0.00

SSDOX vs. SVSPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SSDOX State Street Target Retirement 2055 Fund	10.00%	21.02%	12.37%	19.35%	-19.27%	13.32%	19.62%	25.62%	-7.91%	19.22%
SVSPX State Street S&P 500 Index Fund Class N	9.27%	17.83%	25.07%	26.21%	-18.31%	28.38%	18.48%	31.27%	-4.87%	21.71%

Correlation

The correlation between SSDOX and SVSPX is 0.75, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.75
Correlation (3Y) Balances recent behavior with more history.	0.78
Correlation (5Y) Shows whether the relationship held over a longer period.	0.86
Correlation (10Y) Provides a long-term view across more market conditions.	0.89
Correlation (All Time) Calculated using the full available price history since Oct 1, 2014	0.89

The correlation between SSDOX and SVSPX shifts across timeframes, from 0.75 (1 year) to 0.89 (all time), reflecting how their relationship changes across market environments.

Return for Risk

SSDOX vs. SVSPX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SSDOX

SSDOX Risk / Return Rank: 68
SSDOX Sharpe Ratio Rank: 67
SSDOX Sortino Ratio Rank: 65
SSDOX Omega Ratio Rank: 68
SSDOX Calmar Ratio Rank: 67
SSDOX Martin Ratio Rank: 73

SVSPX

SVSPX Risk / Return Rank: 75
SVSPX Sharpe Ratio Rank: 71
SVSPX Sortino Ratio Rank: 71
SVSPX Omega Ratio Rank: 69
SVSPX Calmar Ratio Rank: 78
SVSPX Martin Ratio Rank: 86

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SSDOX vs. SVSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Target Retirement 2055 Fund (SSDOX) and State Street S&P 500 Index Fund Class N (SVSPX). 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.

	SSDOX	SVSPX	Difference
Sharpe ratio: Return per unit of total volatility	1.57	1.61	-0.04
Sortino ratio: Return per unit of downside risk	2.23	2.34	-0.12
Omega ratio: Gain probability vs. loss probability	1.29	1.29	0.00
Calmar ratio: Return relative to maximum drawdown	2.19	2.48	-0.30
Martin ratio: Return relative to average drawdown	8.86	10.71	-1.85

SSDOX vs. SVSPX - Sharpe Ratio Comparison

The current SSDOX Sharpe Ratio is 1.57, which is comparable to the SVSPX Sharpe Ratio of 1.61. The chart below compares the historical Sharpe Ratios of SSDOX and SVSPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SSDOX vs. SVSPX - Drawdown Comparison

The maximum SSDOX drawdown since its inception was -29.85%, smaller than the maximum SVSPX drawdown of -55.76%. Use the drawdown chart below to compare losses from any high point for SSDOX and SVSPX.

Drawdown Indicators

	SSDOX	SVSPX	Difference
Max Drawdown Largest peak-to-trough decline	-29.85%	-55.76%	+25.91%
Max Drawdown (1Y) Largest decline over 1 year	-8.92%	-8.93%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-15.04%	-19.09%	+4.05%
Max Drawdown (5Y) Largest decline over 5 years	-27.44%	-24.59%	-2.85%
Max Drawdown (10Y) Largest decline over 10 years	-29.85%	-33.69%	+3.84%
Current Drawdown Current decline from peak	-1.86%	-2.11%	+0.25%
Average Drawdown Average peak-to-trough decline	-4.99%	-9.20%	+4.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.20%	1.92%	+0.28%

Volatility

SSDOX vs. SVSPX - Volatility Comparison

State Street Target Retirement 2055 Fund (SSDOX) has a higher volatility of 3.67% compared to State Street S&P 500 Index Fund Class N (SVSPX) at 3.33%. This indicates that SSDOX's price experiences larger fluctuations and is considered to be riskier than SVSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSDOX	SVSPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.67%	3.33%	+0.34%
Volatility (6M) Calculated over the trailing 6-month period	10.36%	10.43%	-0.07%
Volatility (1Y) Calculated over the trailing 1-year period	12.41%	13.75%	-1.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.42%	17.58%	-3.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.81%	18.35%	-3.54%

SSDOX vs. SVSPX - Expense Ratio Comparison

SSDOX has a 0.21% expense ratio, which is higher than SVSPX's 0.16% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

SSDOX vs. SVSPX - Dividend Comparison

SSDOX's dividend yield for the trailing twelve months is around 4.41%, less than SVSPX's 7.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SSDOX State Street Target Retirement 2055 Fund	4.41%	4.85%	4.45%	2.99%	4.97%	4.39%	3.03%	6.02%	5.38%	0.44%	1.71%	2.03%
SVSPX State Street S&P 500 Index Fund Class N	7.60%	8.28%	9.39%	12.38%	10.53%	11.65%	15.98%	6.40%	13.29%	4.94%	8.63%	4.05%

Frequently Asked Questions

Can I hold both SSDOX and SVSPX in my portfolio?

SSDOX and SVSPX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSDOX or SVSPX?

SSDOX has higher volatility (3.67%) compared to SVSPX (3.33%). In terms of maximum drawdown, SSDOX dropped -29.85% vs SVSPX's -55.76%.

Which has better risk-adjusted returns?

SVSPX currently has the higher Sharpe Ratio (1.61 vs 1.57), 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.