IISNX vs. SSBRX

Last updated Jun 5, 2026

IISNX (Voya Index Solution 2055 Portfolio) and SSBRX (State Street Target Retirement 2025 Fund) are both Target Retirement Date funds. Over the past 10 years, IISNX returned 11.77%/yr vs 7.92%/yr for SSBRX. Their correlation of 0.93 suggests significant overlap in exposure. IISNX charges 0.22%/yr vs 0.13%/yr for SSBRX.

Performance

IISNX vs. SSBRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Voya Index Solution 2055 Portfolio (IISNX) and State Street Target Retirement 2025 Fund (SSBRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IISNX achieves a 11.52% return, which is significantly higher than SSBRX's 6.42% return. Over the past 10 years, IISNX has outperformed SSBRX with an annualized return of 11.77%, while SSBRX has yielded a comparatively lower 7.92% annualized return.

IISNX

• 1D: -0.77%
• 1M: 3.64%
• YTD: 11.52%
• 6M: 12.08%
• 1Y: 27.01%
• 3Y*: 19.55%
• 5Y*: 10.02%
• 10Y*: 11.77%

SSBRX

• 1D: -0.30%
• 1M: 1.44%
• YTD: 6.42%
• 6M: 6.59%
• 1Y: 15.12%
• 3Y*: 11.86%
• 5Y*: 5.30%
• 10Y*: 7.92%

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

IISNX vs. SSBRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IISNX Voya Index Solution 2055 Portfolio	11.52%	20.72%	15.38%	20.31%	-18.25%	17.99%	15.46%	25.17%	-8.47%	21.04%
SSBRX State Street Target Retirement 2025 Fund	6.42%	12.93%	8.73%	13.61%	-15.51%	10.03%	14.68%	20.73%	-5.47%	14.32%

Correlation

The correlation between IISNX and SSBRX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Oct 2, 2014	0.93

The correlation between IISNX and SSBRX shifts across timeframes, from 0.82 (1 year) to 0.93 (all time), reflecting how their relationship changes across market environments.

Return for Risk

IISNX vs. SSBRX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IISNX

IISNX Risk / Return Rank: 74
IISNX Sharpe Ratio Rank: 73
IISNX Sortino Ratio Rank: 74
IISNX Omega Ratio Rank: 69
IISNX Calmar Ratio Rank: 72
IISNX Martin Ratio Rank: 85

SSBRX

SSBRX Risk / Return Rank: 84
SSBRX Sharpe Ratio Rank: 87
SSBRX Sortino Ratio Rank: 85
SSBRX Omega Ratio Rank: 83
SSBRX Calmar Ratio Rank: 78
SSBRX Martin Ratio Rank: 86

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.

IISNX vs. SSBRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Voya Index Solution 2055 Portfolio (IISNX) and State Street Target Retirement 2025 Fund (SSBRX). 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.

	IISNX	SSBRX	Difference
Sharpe ratio: Return per unit of total volatility	2.44	2.84	-0.40
Sortino ratio: Return per unit of downside risk	3.52	4.12	-0.60
Omega ratio: Gain probability vs. loss probability	1.45	1.56	-0.11
Calmar ratio: Return relative to maximum drawdown	3.19	3.51	-0.31
Martin ratio: Return relative to average drawdown	15.24	15.97	-0.73
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IISNX vs. SSBRX - Sharpe Ratio Comparison

The current IISNX Sharpe Ratio is 2.44, which is comparable to the SSBRX Sharpe Ratio of 2.84. The chart below compares the historical Sharpe Ratios of IISNX and SSBRX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	IISNX	SSBRX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.44	2.84	-0.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.67	0.60	+0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.74	0.81	-0.07
Sharpe Ratio (All Time) Calculated using the full available price history	0.66	0.74	-0.07

Drawdowns

IISNX vs. SSBRX - Drawdown Comparison

The maximum IISNX drawdown since its inception was -32.62%, which is greater than SSBRX's maximum drawdown of -21.96%. Use the drawdown chart below to compare losses from any high point for IISNX and SSBRX.

Drawdown Indicators

	IISNX	SSBRX	Difference
Max Drawdown Largest peak-to-trough decline	-32.62%	-21.96%	-10.66%
Max Drawdown (1Y) Largest decline over 1 year	-9.38%	-4.44%	-4.94%
Max Drawdown (3Y) Largest decline over 3 years	-15.82%	-7.48%	-8.34%
Max Drawdown (5Y) Largest decline over 5 years	-25.85%	-21.13%	-4.72%
Max Drawdown (10Y) Largest decline over 10 years	-32.62%	-21.96%	-10.66%
Current Drawdown Current decline from peak	-0.77%	-0.30%	-0.47%
Average Drawdown Average peak-to-trough decline	-4.64%	-3.72%	-0.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.90%	0.97%	+0.93%

Volatility

IISNX vs. SSBRX - Volatility Comparison

Voya Index Solution 2055 Portfolio (IISNX) has a higher volatility of 3.65% compared to State Street Target Retirement 2025 Fund (SSBRX) at 1.76%. This indicates that IISNX's price experiences larger fluctuations and is considered to be riskier than SSBRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IISNX	SSBRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.65%	1.76%	+1.89%
Volatility (6M) Calculated over the trailing 6-month period	10.02%	4.36%	+5.66%
Volatility (1Y) Calculated over the trailing 1-year period	12.29%	5.49%	+6.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.28%	8.83%	+6.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.19%	9.82%	+6.37%

IISNX vs. SSBRX - Expense Ratio Comparison

IISNX has a 0.22% expense ratio, which is higher than SSBRX's 0.13% 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

IISNX vs. SSBRX - Dividend Comparison

IISNX's dividend yield for the trailing twelve months is around 1.47%, less than SSBRX's 5.70% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IISNX Voya Index Solution 2055 Portfolio	1.47%	1.64%	0.18%	8.19%	14.20%	4.63%	4.33%	4.96%	3.86%	3.26%	8.60%	10.27%
SSBRX State Street Target Retirement 2025 Fund	5.70%	6.07%	6.67%	4.60%	6.60%	6.44%	4.74%	6.58%	5.35%	0.60%	1.84%	2.38%

Frequently Asked Questions

Can I hold both IISNX and SSBRX in my portfolio?

IISNX and SSBRX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IISNX or SSBRX?

IISNX has higher volatility (3.65%) compared to SSBRX (1.76%). In terms of maximum drawdown, IISNX dropped -32.62% vs SSBRX's -21.96%.

Which has better risk-adjusted returns?

SSBRX currently has the higher Sharpe Ratio (2.84 vs 2.44), 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.