FATKX vs. AADVX

Last updated Jun 4, 2026

FATKX (Fidelity Freedom 2020 Fund Class K6) and AADVX (American Century One Choice Blend+ 2055 Portfolio) are both Target Retirement Date funds. Over the past 5 years, FATKX returned 6.13%/yr vs 9.04%/yr for AADVX. Their correlation of 0.91 suggests significant overlap in exposure. FATKX charges 0.42%/yr vs 0.58%/yr for AADVX.

Performance

FATKX vs. AADVX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Freedom 2020 Fund Class K6 (FATKX) 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, FATKX achieves a 7.25% return, which is significantly lower than AADVX's 11.10% return.

FATKX

• 1D: 0.32%
• 1M: 2.60%
• YTD: 7.25%
• 6M: 7.96%
• 1Y: 17.46%
• 3Y*: 13.61%
• 5Y*: 6.13%
• 10Y*: —

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)

FATKX vs. AADVX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
FATKX Fidelity Freedom 2020 Fund Class K6	7.25%	15.14%	11.68%	13.16%	-15.93%	6.88%
AADVX American Century One Choice Blend+ 2055 Portfolio	11.10%	20.15%	14.53%	16.70%	-16.92%	9.39%

Correlation

The correlation between FATKX and AADVX is 0.92, 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	0.92
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	0.91

The correlation between FATKX and AADVX has been stable across timeframes, ranging from 0.89 to 0.92 - a consistent structural relationship.

Return for Risk

FATKX vs. AADVX — Risk / Return Rank

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

FATKX

FATKX Risk / Return Rank: 75
FATKX Sharpe Ratio Rank: 78
FATKX Sortino Ratio Rank: 77
FATKX Omega Ratio Rank: 78
FATKX Calmar Ratio Rank: 70
FATKX Martin Ratio Rank: 75

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.

FATKX vs. AADVX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Freedom 2020 Fund Class K6 (FATKX) 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.

	FATKX	AADVX	Difference
Sharpe ratio: Return per unit of total volatility	2.56	2.37	+0.18
Sortino ratio: Return per unit of downside risk	3.68	3.28	+0.39
Omega ratio: Gain probability vs. loss probability	1.51	1.43	+0.08
Calmar ratio: Return relative to maximum drawdown	3.24	3.01	+0.24
Martin ratio: Return relative to average drawdown	14.19	13.18	+1.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FATKX vs. AADVX - Sharpe Ratio Comparison

The current FATKX Sharpe Ratio is 2.56, which is comparable to the AADVX Sharpe Ratio of 2.37. The chart below compares the historical Sharpe Ratios of FATKX 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

	FATKX	AADVX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.56	2.37	+0.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.68	0.62	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.83	0.67	+0.16

Drawdowns

FATKX vs. AADVX - Drawdown Comparison

The maximum FATKX drawdown since its inception was -22.44%, smaller than the maximum AADVX drawdown of -26.03%. Use the drawdown chart below to compare losses from any high point for FATKX and AADVX.

Drawdown Indicators

	FATKX	AADVX	Difference
Max Drawdown Largest peak-to-trough decline	-22.44%	-26.03%	+3.59%
Max Drawdown (1Y) Largest decline over 1 year	-5.48%	-9.19%	+3.71%
Max Drawdown (3Y) Largest decline over 3 years	-7.64%	-15.92%	+8.28%
Max Drawdown (5Y) Largest decline over 5 years	-22.44%	-26.03%	+3.59%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-4.38%	-6.56%	+2.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.25%	2.09%	-0.84%

Volatility

FATKX vs. AADVX - Volatility Comparison

The current volatility for Fidelity Freedom 2020 Fund Class K6 (FATKX) is 2.65%, while American Century One Choice Blend+ 2055 Portfolio (AADVX) has a volatility of 3.35%. This indicates that FATKX 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

	FATKX	AADVX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.65%	3.35%	-0.70%
Volatility (6M) Calculated over the trailing 6-month period	5.79%	9.20%	-3.41%
Volatility (1Y) Calculated over the trailing 1-year period	6.96%	11.65%	-4.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.01%	14.63%	-5.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.28%	14.50%	-5.22%

FATKX vs. AADVX - Expense Ratio Comparison

FATKX has a 0.42% expense ratio, which is lower than AADVX's 0.58% expense ratio.

Dividends

FATKX vs. AADVX - Dividend Comparison

FATKX's dividend yield for the trailing twelve months is around 7.90%, more than AADVX's 3.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
FATKX Fidelity Freedom 2020 Fund Class K6	7.90%	7.70%	8.73%	2.94%	10.06%	12.30%	6.93%	6.79%	7.43%	3.18%

Frequently Asked Questions

Can I hold both FATKX and AADVX in my portfolio?

With a correlation of 0.92, FATKX and AADVX 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, FATKX or AADVX?

AADVX has higher volatility (3.35%) compared to FATKX (2.65%). In terms of maximum drawdown, FATKX dropped -22.44% vs AADVX's -26.03%.

Which has better risk-adjusted returns?

FATKX currently has the higher Sharpe Ratio (2.56 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.