AAHTX vs. TRRKX

Last updated Jun 3, 2026

AAHTX (American Funds 2045 Target Date Retirement Fund) and TRRKX (T. Rowe Price Retirement 2045 Fund) are both Target Retirement Date funds. Over the past 10 years, AAHTX returned 11.84%/yr vs 11.02%/yr for TRRKX. With a 0.97 correlation, they move nearly in lockstep. AAHTX charges 0.33%/yr vs 0.63%/yr for TRRKX.

Performance

AAHTX vs. TRRKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds 2045 Target Date Retirement Fund (AAHTX) and T. Rowe Price Retirement 2045 Fund (TRRKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AAHTX achieves a 9.89% return, which is significantly lower than TRRKX's 10.86% return. Over the past 10 years, AAHTX has outperformed TRRKX with an annualized return of 11.84%, while TRRKX has yielded a comparatively lower 11.02% annualized return.

AAHTX

• 1D: 0.00%
• 1M: 4.13%
• YTD: 9.89%
• 6M: 11.03%
• 1Y: 24.70%
• 3Y*: 18.62%
• 5Y*: 9.53%
• 10Y*: 11.84%

TRRKX

• 1D: 0.14%
• 1M: 3.53%
• YTD: 10.86%
• 6M: 7.93%
• 1Y: 20.58%
• 3Y*: 16.74%
• 5Y*: 7.80%
• 10Y*: 11.02%

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

AAHTX vs. TRRKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AAHTX American Funds 2045 Target Date Retirement Fund	9.89%	20.01%	14.82%	19.74%	-18.40%	16.83%	18.79%	24.33%	-5.92%	22.02%
TRRKX T. Rowe Price Retirement 2045 Fund	10.86%	14.20%	13.94%	20.52%	-19.03%	15.80%	18.64%	25.41%	-7.66%	22.42%

Correlation

The correlation between AAHTX and TRRKX 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	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Feb 5, 2007	0.97

The correlation between AAHTX and TRRKX has been stable across timeframes, ranging from 0.92 to 0.97 - a consistent structural relationship.

Return for Risk

AAHTX vs. TRRKX — Risk / Return Rank

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

AAHTX

AAHTX Risk / Return Rank: 58
AAHTX Sharpe Ratio Rank: 59
AAHTX Sortino Ratio Rank: 58
AAHTX Omega Ratio Rank: 57
AAHTX Calmar Ratio Rank: 51
AAHTX Martin Ratio Rank: 64

TRRKX

TRRKX Risk / Return Rank: 38
TRRKX Sharpe Ratio Rank: 39
TRRKX Sortino Ratio Rank: 37
TRRKX Omega Ratio Rank: 41
TRRKX Calmar Ratio Rank: 32
TRRKX Martin Ratio Rank: 42

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.

AAHTX vs. TRRKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds 2045 Target Date Retirement Fund (AAHTX) and T. Rowe Price Retirement 2045 Fund (TRRKX). 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.

	AAHTX	TRRKX	Difference
Sharpe ratio Return per unit of total volatility	2.28	1.81	+0.47
Sortino ratio Return per unit of downside risk	3.20	2.55	+0.65
Omega ratio Gain probability vs. loss probability	1.42	1.34	+0.08
Calmar ratio Return relative to maximum drawdown	2.76	2.17	+0.60
Martin ratio Return relative to average drawdown	12.55	9.16	+3.39
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AAHTX vs. TRRKX - Sharpe Ratio Comparison

The current AAHTX Sharpe Ratio is 2.28, which is comparable to the TRRKX Sharpe Ratio of 1.81. The chart below compares the historical Sharpe Ratios of AAHTX and TRRKX, 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

	AAHTX	TRRKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.28	1.81	+0.47
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.69	0.53	+0.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.81	0.72	+0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.54	0.51	+0.03

Drawdowns

AAHTX vs. TRRKX - Drawdown Comparison

The maximum AAHTX drawdown since its inception was -50.05%, smaller than the maximum TRRKX drawdown of -53.54%. Use the drawdown chart below to compare losses from any high point for AAHTX and TRRKX.

Drawdown Indicators

	AAHTX	TRRKX	Difference
Max Drawdown Largest peak-to-trough decline	-50.05%	-53.54%	+3.49%
Max Drawdown (1Y) Largest decline over 1 year	-9.20%	-9.49%	+0.29%
Max Drawdown (3Y) Largest decline over 3 years	-14.49%	-15.16%	+0.67%
Max Drawdown (5Y) Largest decline over 5 years	-25.83%	-28.75%	+2.92%
Max Drawdown (10Y) Largest decline over 10 years	-28.92%	-32.48%	+3.56%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-7.09%	-7.22%	+0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.03%	2.25%	-0.22%

Volatility

AAHTX vs. TRRKX - Volatility Comparison

American Funds 2045 Target Date Retirement Fund (AAHTX) and T. Rowe Price Retirement 2045 Fund (TRRKX) have volatilities of 3.26% and 3.42%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AAHTX	TRRKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.26%	3.42%	-0.16%
Volatility (6M) Calculated over the trailing 6-month period	8.95%	10.03%	-1.08%
Volatility (1Y) Calculated over the trailing 1-year period	11.21%	12.09%	-0.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.95%	14.92%	-0.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.59%	15.33%	-0.74%

AAHTX vs. TRRKX - Expense Ratio Comparison

AAHTX has a 0.33% expense ratio, which is lower than TRRKX's 0.63% expense ratio.

Dividends

AAHTX vs. TRRKX - Dividend Comparison

AAHTX's dividend yield for the trailing twelve months is around 5.33%, while TRRKX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAHTX American Funds 2045 Target Date Retirement Fund	5.33%	5.85%	3.37%	2.46%	6.75%	4.62%	3.19%	4.24%	4.85%	2.33%	3.50%	4.74%
TRRKX T. Rowe Price Retirement 2045 Fund	0.00%	0.00%	1.96%	4.40%	7.83%	5.58%	4.52%	5.94%	8.98%	3.52%	3.20%	4.25%

Frequently Asked Questions

Can I hold both AAHTX and TRRKX in my portfolio?

With a correlation of 0.92, AAHTX and TRRKX 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, AAHTX or TRRKX?

TRRKX has higher volatility (3.42%) compared to AAHTX (3.26%). In terms of maximum drawdown, AAHTX dropped -50.05% vs TRRKX's -53.54%.

Which has better risk-adjusted returns?

AAHTX currently has the higher Sharpe Ratio (2.28 vs 1.81), 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.