FSNKX vs. FDIFX

Last updated Jun 5, 2026

FSNKX (Fidelity Freedom 2010 Fund Class K) and FDIFX (Fidelity Advisor Freedom 2020 Fund Class I) are both Target Retirement Date funds from Fidelity. Over the past 5 years, FSNKX returned 3.60%/yr vs 4.64%/yr for FDIFX. With a 0.97 correlation, they move nearly in lockstep. FSNKX charges 0.44%/yr vs 0.58%/yr for FDIFX.

Performance

FSNKX vs. FDIFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Freedom 2010 Fund Class K (FSNKX) and Fidelity Advisor Freedom 2020 Fund Class I (FDIFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSNKX achieves a 5.07% return, which is significantly lower than FDIFX's 6.18% return.

FSNKX

• 1D: -0.26%
• 1M: 1.23%
• YTD: 5.07%
• 6M: 5.49%
• 1Y: 11.95%
• 3Y*: 9.02%
• 5Y*: 3.60%
• 10Y*: —

FDIFX

• 1D: -0.38%
• 1M: 1.55%
• YTD: 6.18%
• 6M: 6.80%
• 1Y: 15.06%
• 3Y*: 11.44%
• 5Y*: 4.64%
• 10Y*: 7.43%

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

FSNKX vs. FDIFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSNKX Fidelity Freedom 2010 Fund Class K	5.07%	11.42%	5.33%	9.94%	-13.18%	5.67%	11.22%	14.40%	-3.50%	4.12%
FDIFX Fidelity Advisor Freedom 2020 Fund Class I	6.18%	14.57%	7.11%	12.37%	-16.02%	8.68%	13.43%	18.64%	-4.87%	4.96%

Correlation

The correlation between FSNKX and FDIFX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jul 26, 2017	0.97

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

Return for Risk

FSNKX vs. FDIFX — Risk / Return Rank

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

FSNKX

FSNKX Risk / Return Rank: 75
FSNKX Sharpe Ratio Rank: 75
FSNKX Sortino Ratio Rank: 76
FSNKX Omega Ratio Rank: 79
FSNKX Calmar Ratio Rank: 69
FSNKX Martin Ratio Rank: 74

FDIFX

FDIFX Risk / Return Rank: 62
FDIFX Sharpe Ratio Rank: 60
FDIFX Sortino Ratio Rank: 62
FDIFX Omega Ratio Rank: 67
FDIFX Calmar Ratio Rank: 56
FDIFX Martin Ratio Rank: 63

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.

FSNKX vs. FDIFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Freedom 2010 Fund Class K (FSNKX) and Fidelity Advisor Freedom 2020 Fund Class I (FDIFX). 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.

	FSNKX	FDIFX	Difference
Sharpe ratio: Return per unit of total volatility	2.50	2.28	+0.22
Sortino ratio: Return per unit of downside risk	3.65	3.27	+0.38
Omega ratio: Gain probability vs. loss probability	1.51	1.45	+0.06
Calmar ratio: Return relative to maximum drawdown	3.13	2.84	+0.29
Martin ratio: Return relative to average drawdown	13.70	12.28	+1.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSNKX vs. FDIFX - Sharpe Ratio Comparison

The current FSNKX Sharpe Ratio is 2.50, which is comparable to the FDIFX Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of FSNKX and FDIFX, 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

	FSNKX	FDIFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.50	2.28	+0.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.57	0.53	+0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.82	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	0.50	+0.34

Drawdowns

FSNKX vs. FDIFX - Drawdown Comparison

The maximum FSNKX drawdown since its inception was -18.31%, smaller than the maximum FDIFX drawdown of -47.24%. Use the drawdown chart below to compare losses from any high point for FSNKX and FDIFX.

Drawdown Indicators

	FSNKX	FDIFX	Difference
Max Drawdown Largest peak-to-trough decline	-18.31%	-47.24%	+28.93%
Max Drawdown (1Y) Largest decline over 1 year	-4.00%	-5.52%	+1.52%
Max Drawdown (3Y) Largest decline over 3 years	-5.76%	-7.71%	+1.95%
Max Drawdown (5Y) Largest decline over 5 years	-18.31%	-22.52%	+4.21%
Max Drawdown (10Y) Largest decline over 10 years	—	-22.52%	—
Current Drawdown Current decline from peak	-0.26%	-0.38%	+0.12%
Average Drawdown Average peak-to-trough decline	-3.61%	-5.42%	+1.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.91%	1.28%	-0.37%

Volatility

FSNKX vs. FDIFX - Volatility Comparison

The current volatility for Fidelity Freedom 2010 Fund Class K (FSNKX) is 2.01%, while Fidelity Advisor Freedom 2020 Fund Class I (FDIFX) has a volatility of 2.60%. This indicates that FSNKX experiences smaller price fluctuations and is considered to be less risky than FDIFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSNKX	FDIFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.01%	2.60%	-0.59%
Volatility (6M) Calculated over the trailing 6-month period	4.21%	5.75%	-1.54%
Volatility (1Y) Calculated over the trailing 1-year period	5.02%	6.89%	-1.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.40%	8.87%	-2.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.44%	9.06%	-2.62%

FSNKX vs. FDIFX - Expense Ratio Comparison

FSNKX has a 0.44% expense ratio, which is lower than FDIFX's 0.58% expense ratio.

Dividends

FSNKX vs. FDIFX - Dividend Comparison

FSNKX's dividend yield for the trailing twelve months is around 4.69%, less than FDIFX's 7.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDIFX Fidelity Advisor Freedom 2020 Fund Class I	7.74%	7.75%	4.02%	2.25%	8.95%	10.81%	7.15%	6.84%	9.66%	6.08%	4.56%	3.55%
FSNKX Fidelity Freedom 2010 Fund Class K	4.69%	4.99%	3.05%	2.83%	7.28%	9.36%	6.05%	5.83%	7.26%	3.53%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FSNKX and FDIFX in my portfolio?

With a correlation of 0.97, FSNKX and FDIFX 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, FSNKX or FDIFX?

FDIFX has higher volatility (2.60%) compared to FSNKX (2.01%). In terms of maximum drawdown, FSNKX dropped -18.31% vs FDIFX's -47.24%.

Which has better risk-adjusted returns?

FSNKX currently has the higher Sharpe Ratio (2.50 vs 2.28), 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.