SSDDX vs. FFSZX

Last updated Jun 25, 2026

SSDDX (State Street Target Retirement 2045 Fund) and FFSZX (Fidelity Freedom 2065 Fund Class K6) are both Target Retirement Date funds. Over the past 5 years, SSDDX returned 7.62%/yr vs 10.23%/yr for FFSZX. With a 0.96 correlation, they move nearly in lockstep. SSDDX charges 0.18%/yr vs 0.50%/yr for FFSZX.

Performance

SSDDX vs. FFSZX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Target Retirement 2045 Fund (SSDDX) and Fidelity Freedom 2065 Fund Class K6 (FFSZX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSDDX achieves a 8.86% return, which is significantly lower than FFSZX's 12.19% return.

SSDDX

• 1D: -1.47%
• 1M: 0.17%
• YTD: 8.86%
• 6M: 8.00%
• 1Y: 20.95%
• 3Y*: 16.48%
• 5Y*: 7.62%
• 10Y*: 10.95%

FFSZX

• 1D: -2.22%
• 1M: 0.76%
• YTD: 12.19%
• 6M: 11.48%
• 1Y: 26.92%
• 3Y*: 20.21%
• 5Y*: 10.23%
• 10Y*: —

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

SSDDX vs. FFSZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
SSDDX State Street Target Retirement 2045 Fund	8.86%	19.92%	11.80%	18.48%	-18.97%	13.08%	19.28%	8.58%
FFSZX Fidelity Freedom 2065 Fund Class K6	12.19%	24.08%	14.41%	20.78%	-18.05%	16.81%	18.36%	9.18%

Correlation

The correlation between SSDDX and FFSZX is 0.95, 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	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jun 28, 2019	0.96

The correlation between SSDDX and FFSZX has been stable across timeframes, ranging from 0.95 to 0.97 - a consistent structural relationship.

Return for Risk

SSDDX vs. FFSZX — Risk / Return Rank

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

SSDDX

SSDDX Risk / Return Rank: 62
SSDDX Sharpe Ratio Rank: 62
SSDDX Sortino Ratio Rank: 59
SSDDX Omega Ratio Rank: 65
SSDDX Calmar Ratio Rank: 59
SSDDX Martin Ratio Rank: 64

FFSZX

FFSZX Risk / Return Rank: 65
FFSZX Sharpe Ratio Rank: 62
FFSZX Sortino Ratio Rank: 57
FFSZX Omega Ratio Rank: 62
FFSZX Calmar Ratio Rank: 68
FFSZX 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.

SSDDX vs. FFSZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Target Retirement 2045 Fund (SSDDX) and Fidelity Freedom 2065 Fund Class K6 (FFSZX). 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.

	SSDDX	FFSZX	Difference
Sharpe ratio: Return per unit of total volatility	2.03	2.06	-0.03
Sortino ratio: Return per unit of downside risk	2.82	2.81	+0.01
Omega ratio: Gain probability vs. loss probability	1.39	1.39	0.00
Calmar ratio: Return relative to maximum drawdown	2.70	2.93	-0.24
Martin ratio: Return relative to average drawdown	11.25	12.84	-1.59

SSDDX vs. FFSZX - Sharpe Ratio Comparison

The current SSDDX Sharpe Ratio is 2.03, which is comparable to the FFSZX Sharpe Ratio of 2.06. The chart below compares the historical Sharpe Ratios of SSDDX and FFSZX, 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

SSDDX vs. FFSZX - Drawdown Comparison

The maximum SSDDX drawdown since its inception was -29.22%, smaller than the maximum FFSZX drawdown of -31.00%. Use the drawdown chart below to compare losses from any high point for SSDDX and FFSZX.

Drawdown Indicators

	SSDDX	FFSZX	Difference
Max Drawdown Largest peak-to-trough decline	-29.22%	-31.00%	+1.78%
Max Drawdown (1Y) Largest decline over 1 year	-8.35%	-9.77%	+1.42%
Max Drawdown (3Y) Largest decline over 3 years	-13.69%	-15.36%	+1.67%
Max Drawdown (5Y) Largest decline over 5 years	-26.80%	-27.17%	+0.37%
Max Drawdown (10Y) Largest decline over 10 years	-29.22%	—	—
Current Drawdown Current decline from peak	-1.85%	-2.50%	+0.65%
Average Drawdown Average peak-to-trough decline	-4.92%	-5.77%	+0.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.00%	2.23%	-0.23%

Volatility

SSDDX vs. FFSZX - Volatility Comparison

The current volatility for State Street Target Retirement 2045 Fund (SSDDX) is 4.66%, while Fidelity Freedom 2065 Fund Class K6 (FFSZX) has a volatility of 6.20%. This indicates that SSDDX experiences smaller price fluctuations and is considered to be less risky than FFSZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSDDX	FFSZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.66%	6.20%	-1.54%
Volatility (6M) Calculated over the trailing 6-month period	9.26%	11.93%	-2.67%
Volatility (1Y) Calculated over the trailing 1-year period	11.11%	13.92%	-2.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.54%	15.22%	-1.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.25%	17.12%	-2.87%

SSDDX vs. FFSZX - Expense Ratio Comparison

SSDDX has a 0.18% expense ratio, which is lower than FFSZX's 0.50% expense ratio.

Dividends

SSDDX vs. FFSZX - Dividend Comparison

SSDDX's dividend yield for the trailing twelve months is around 6.13%, more than FFSZX's 5.11% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FFSZX Fidelity Freedom 2065 Fund Class K6	5.11%	3.82%	2.92%	2.26%	8.99%	7.98%	2.41%	1.47%	0.00%	0.00%	0.00%	0.00%
SSDDX State Street Target Retirement 2045 Fund	6.13%	6.67%	4.90%	3.56%	5.36%	4.88%	4.04%	6.21%	5.00%	0.43%	1.72%	1.87%

Frequently Asked Questions

Can I hold both SSDDX and FFSZX in my portfolio?

With a correlation of 0.95, SSDDX and FFSZX 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.

Which is riskier, SSDDX or FFSZX?

FFSZX has higher volatility (6.20%) compared to SSDDX (4.66%). In terms of maximum drawdown, SSDDX dropped -29.22% vs FFSZX's -31.00%.

Which has better risk-adjusted returns?

FFSZX currently has the higher Sharpe Ratio (2.06 vs 2.03), 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.