SSFNX vs. AADVX

Last updated Jun 4, 2026

SSFNX (State Street Target Retirement Fund) and AADVX (American Century One Choice Blend+ 2055 Portfolio) are both Target Retirement Date funds. Over the past 5 years, SSFNX returned 4.57%/yr vs 9.04%/yr for AADVX. Their correlation of 0.90 suggests significant overlap in exposure. SSFNX charges 0.10%/yr vs 0.58%/yr for AADVX.

Performance

SSFNX vs. AADVX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Target Retirement Fund (SSFNX) and American Century One Choice Blend+ 2055 Portfolio (AADVX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSFNX achieves a 5.58% return, which is significantly lower than AADVX's 11.10% return.

SSFNX

• 1D: 0.17%
• 1M: 1.53%
• YTD: 5.58%
• 6M: 5.73%
• 1Y: 13.09%
• 3Y*: 9.93%
• 5Y*: 4.57%
• 10Y*: 5.89%

AADVX

• 1D: 0.14%
• 1M: 4.24%
• YTD: 11.10%
• 6M: 12.25%
• 1Y: 27.18%
• 3Y*: 18.53%
• 5Y*: 9.04%
• 10Y*: —

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

SSFNX vs. AADVX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SSFNX State Street Target Retirement Fund	5.58%	10.93%	7.05%	10.73%	-12.21%	5.99%
AADVX American Century One Choice Blend+ 2055 Portfolio	11.10%	20.15%	14.53%	16.70%	-16.92%	9.39%

Correlation

The correlation between SSFNX and AADVX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (All Time) Calculated using the full available price history since Mar 11, 2021	0.90

The correlation between SSFNX and AADVX has been stable across timeframes, ranging from 0.88 to 0.90 - a consistent structural relationship.

Return for Risk

SSFNX vs. AADVX — Risk / Return Rank

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

SSFNX

SSFNX Risk / Return Rank: 88
SSFNX Sharpe Ratio Rank: 90
SSFNX Sortino Ratio Rank: 90
SSFNX Omega Ratio Rank: 88
SSFNX Calmar Ratio Rank: 81
SSFNX Martin Ratio Rank: 88

AADVX

AADVX Risk / Return Rank: 63
AADVX Sharpe Ratio Rank: 65
AADVX Sortino Ratio Rank: 62
AADVX Omega Ratio Rank: 60
AADVX Calmar Ratio Rank: 61
AADVX Martin Ratio Rank: 68

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.

SSFNX vs. AADVX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Target Retirement Fund (SSFNX) and American Century One Choice Blend+ 2055 Portfolio (AADVX). 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.

	SSFNX	AADVX	Difference
Sharpe ratio Return per unit of total volatility	3.00	2.37	+0.63
Sortino ratio Return per unit of downside risk	4.41	3.28	+1.12
Omega ratio Gain probability vs. loss probability	1.62	1.43	+0.18
Calmar ratio Return relative to maximum drawdown	3.73	3.01	+0.73
Martin ratio Return relative to average drawdown	16.97	13.18	+3.79
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SSFNX vs. AADVX - Sharpe Ratio Comparison

The current SSFNX Sharpe Ratio is 3.00, which is comparable to the AADVX Sharpe Ratio of 2.37. The chart below compares the historical Sharpe Ratios of SSFNX and AADVX, 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

	SSFNX	AADVX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.00	2.37	+0.63
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	0.62	+0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.90	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	0.67	+0.17

Drawdowns

SSFNX vs. AADVX - Drawdown Comparison

The maximum SSFNX drawdown since its inception was -16.62%, smaller than the maximum AADVX drawdown of -26.03%. Use the drawdown chart below to compare losses from any high point for SSFNX and AADVX.

Drawdown Indicators

	SSFNX	AADVX	Difference
Max Drawdown Largest peak-to-trough decline	-16.62%	-26.03%	+9.41%
Max Drawdown (1Y) Largest decline over 1 year	-3.52%	-9.19%	+5.67%
Max Drawdown (3Y) Largest decline over 3 years	-5.40%	-15.92%	+10.52%
Max Drawdown (5Y) Largest decline over 5 years	-16.62%	-26.03%	+9.41%
Max Drawdown (10Y) Largest decline over 10 years	-16.62%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.52%	-6.56%	+4.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.77%	2.09%	-1.32%

Volatility

SSFNX vs. AADVX - Volatility Comparison

The current volatility for State Street Target Retirement Fund (SSFNX) is 1.41%, while American Century One Choice Blend+ 2055 Portfolio (AADVX) has a volatility of 3.35%. This indicates that SSFNX experiences smaller price fluctuations and is considered to be less risky than AADVX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSFNX	AADVX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.41%	3.35%	-1.94%
Volatility (6M) Calculated over the trailing 6-month period	3.53%	9.20%	-5.67%
Volatility (1Y) Calculated over the trailing 1-year period	4.38%	11.65%	-7.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.58%	14.63%	-8.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.57%	14.50%	-7.93%

SSFNX vs. AADVX - Expense Ratio Comparison

SSFNX has a 0.10% expense ratio, which is lower than AADVX's 0.58% expense ratio.

Dividends

SSFNX vs. AADVX - Dividend Comparison

SSFNX's dividend yield for the trailing twelve months is around 4.61%, more than AADVX's 3.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AADVX American Century One Choice Blend+ 2055 Portfolio	3.35%	3.72%	3.05%	1.66%	3.21%	3.11%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SSFNX State Street Target Retirement Fund	4.61%	4.86%	5.78%	5.26%	5.12%	6.69%	1.61%	3.35%	4.40%	2.72%	1.84%	2.05%

Frequently Asked Questions

Can I hold both SSFNX and AADVX in my portfolio?

SSFNX and AADVX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSFNX or AADVX?

AADVX has higher volatility (3.35%) compared to SSFNX (1.41%). In terms of maximum drawdown, SSFNX dropped -16.62% vs AADVX's -26.03%.

Which has better risk-adjusted returns?

SSFNX currently has the higher Sharpe Ratio (3.00 vs 2.37), 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.