AABTX vs. NDARX

Last updated Jun 3, 2026

AABTX (American Funds 2015 Target Date Retirement Fund) and NDARX (American Funds Retirement Income Portfolio - Enhanced) are both mutual funds - AABTX is a Target Retirement Date fund managed by American Funds, while NDARX is a Diversified Portfolio fund managed by American Funds. Over the past 10 years, AABTX returned 6.58%/yr vs 8.46%/yr for NDARX. With a 0.97 correlation, they move nearly in lockstep. AABTX charges 0.33%/yr vs 0.34%/yr for NDARX.

Performance

AABTX vs. NDARX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds 2015 Target Date Retirement Fund (AABTX) and American Funds Retirement Income Portfolio - Enhanced (NDARX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AABTX achieves a 4.20% return, which is significantly lower than NDARX's 6.67% return. Over the past 10 years, AABTX has underperformed NDARX with an annualized return of 6.58%, while NDARX has yielded a comparatively higher 8.46% annualized return.

AABTX

• 1D: -0.15%
• 1M: 1.13%
• YTD: 4.20%
• 6M: 4.90%
• 1Y: 12.52%
• 3Y*: 10.53%
• 5Y*: 5.23%
• 10Y*: 6.58%

NDARX

• 1D: -0.12%
• 1M: 2.08%
• YTD: 6.67%
• 6M: 7.74%
• 1Y: 18.08%
• 3Y*: 14.66%
• 5Y*: 7.90%
• 10Y*: 8.46%

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

AABTX vs. NDARX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AABTX American Funds 2015 Target Date Retirement Fund	4.20%	13.11%	8.07%	9.23%	-10.56%	9.95%	9.63%	14.47%	-2.98%	10.84%
NDARX American Funds Retirement Income Portfolio - Enhanced	6.67%	17.21%	11.68%	12.03%	-10.98%	15.09%	7.10%	17.88%	-4.99%	13.62%

Correlation

The correlation between AABTX and NDARX is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016	0.97

The correlation between AABTX and NDARX has been stable across timeframes, ranging from 0.96 to 0.97 - a consistent structural relationship.

Return for Risk

AABTX vs. NDARX — Risk / Return Rank

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

AABTX

AABTX Risk / Return Rank: 66
AABTX Sharpe Ratio Rank: 74
AABTX Sortino Ratio Rank: 75
AABTX Omega Ratio Rank: 74
AABTX Calmar Ratio Rank: 49
AABTX Martin Ratio Rank: 59

NDARX

NDARX Risk / Return Rank: 64
NDARX Sharpe Ratio Rank: 70
NDARX Sortino Ratio Rank: 68
NDARX Omega Ratio Rank: 69
NDARX Calmar Ratio Rank: 50
NDARX Martin Ratio Rank: 62

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.

AABTX vs. NDARX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds 2015 Target Date Retirement Fund (AABTX) and American Funds Retirement Income Portfolio - Enhanced (NDARX). 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.

	AABTX	NDARX	Difference
Sharpe ratio Return per unit of total volatility	2.49	2.44	+0.05
Sortino ratio Return per unit of downside risk	3.62	3.44	+0.19
Omega ratio Gain probability vs. loss probability	1.49	1.47	+0.02
Calmar ratio Return relative to maximum drawdown	2.70	2.72	-0.02
Martin ratio Return relative to average drawdown	11.80	12.30	-0.50
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AABTX vs. NDARX - Sharpe Ratio Comparison

The current AABTX Sharpe Ratio is 2.49, which is comparable to the NDARX Sharpe Ratio of 2.44. The chart below compares the historical Sharpe Ratios of AABTX and NDARX, 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

	AABTX	NDARX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.49	2.44	+0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.76	0.84	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.91	0.83	+0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.54	0.86	-0.32

Drawdowns

AABTX vs. NDARX - Drawdown Comparison

The maximum AABTX drawdown since its inception was -42.44%, which is greater than NDARX's maximum drawdown of -23.62%. Use the drawdown chart below to compare losses from any high point for AABTX and NDARX.

Drawdown Indicators

	AABTX	NDARX	Difference
Max Drawdown Largest peak-to-trough decline	-42.44%	-23.62%	-18.82%
Max Drawdown (1Y) Largest decline over 1 year	-4.74%	-6.86%	+2.12%
Max Drawdown (3Y) Largest decline over 3 years	-5.88%	-9.18%	+3.30%
Max Drawdown (5Y) Largest decline over 5 years	-16.21%	-18.37%	+2.16%
Max Drawdown (10Y) Largest decline over 10 years	-16.58%	-23.62%	+7.04%
Current Drawdown Current decline from peak	-0.15%	-0.12%	-0.03%
Average Drawdown Average peak-to-trough decline	-4.75%	-3.09%	-1.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.08%	1.52%	-0.44%

Volatility

AABTX vs. NDARX - Volatility Comparison

The current volatility for American Funds 2015 Target Date Retirement Fund (AABTX) is 1.68%, while American Funds Retirement Income Portfolio - Enhanced (NDARX) has a volatility of 2.29%. This indicates that AABTX experiences smaller price fluctuations and is considered to be less risky than NDARX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AABTX	NDARX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.68%	2.29%	-0.61%
Volatility (6M) Calculated over the trailing 6-month period	4.14%	6.15%	-2.01%
Volatility (1Y) Calculated over the trailing 1-year period	5.13%	7.63%	-2.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.94%	9.49%	-2.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.27%	10.21%	-2.94%

AABTX vs. NDARX - Expense Ratio Comparison

AABTX has a 0.33% expense ratio, which is lower than NDARX's 0.34% expense ratio.

Dividends

AABTX vs. NDARX - Dividend Comparison

AABTX's dividend yield for the trailing twelve months is around 7.26%, more than NDARX's 4.91% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AABTX American Funds 2015 Target Date Retirement Fund	7.26%	7.57%	5.27%	3.52%	3.72%	4.95%	4.07%	4.05%	4.28%	2.71%	3.02%	5.56%
NDARX American Funds Retirement Income Portfolio - Enhanced	4.91%	5.78%	3.07%	3.37%	5.60%	4.29%	2.91%	4.03%	4.29%	2.68%	2.86%	0.00%

Frequently Asked Questions

Can I hold both AABTX and NDARX in my portfolio?

With a correlation of 0.96, AABTX and NDARX 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, AABTX or NDARX?

NDARX has higher volatility (2.29%) compared to AABTX (1.68%). In terms of maximum drawdown, AABTX dropped -42.44% vs NDARX's -23.62%.

Which has better risk-adjusted returns?

AABTX currently has the higher Sharpe Ratio (2.49 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.