RFHTX vs. LTTIX

Last updated Jun 24, 2026

RFHTX (American Funds 2045 Target Date Retirement Fund Class R-6) and LTTIX (MFS Lifetime 2025 Fund) are both Target Retirement Date funds. Over the past 10 years, RFHTX returned 12.55%/yr vs 6.24%/yr for LTTIX. Their correlation of 0.91 suggests significant overlap in exposure. RFHTX charges 0.37%/yr vs 0.00%/yr for LTTIX.

Performance

RFHTX vs. LTTIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds 2045 Target Date Retirement Fund Class R-6 (RFHTX) and MFS Lifetime 2025 Fund (LTTIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RFHTX achieves a 10.01% return, which is significantly higher than LTTIX's 2.74% return. Over the past 10 years, RFHTX has outperformed LTTIX with an annualized return of 12.55%, while LTTIX has yielded a comparatively lower 6.24% annualized return.

RFHTX

• 1D: -0.19%
• 1M: 1.92%
• YTD: 10.01%
• 6M: 9.60%
• 1Y: 23.36%
• 3Y*: 18.71%
• 5Y*: 9.83%
• 10Y*: 12.55%

LTTIX

• 1D: 0.00%
• 1M: 0.08%
• YTD: 2.74%
• 6M: 2.59%
• 1Y: 8.04%
• 3Y*: 8.33%
• 5Y*: 3.72%
• 10Y*: 6.24%

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

RFHTX vs. LTTIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RFHTX American Funds 2045 Target Date Retirement Fund Class R-6	10.01%	20.44%	15.18%	20.16%	-18.16%	17.23%	19.22%	24.65%	-5.57%	22.44%
LTTIX MFS Lifetime 2025 Fund	2.74%	9.29%	6.73%	10.36%	-12.36%	8.61%	10.61%	17.82%	-3.97%	13.16%

Correlation

The correlation between RFHTX and LTTIX is 0.81, 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	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013	0.91

The correlation between RFHTX and LTTIX shifts across timeframes, from 0.81 (1 year) to 0.91 (all time), reflecting how their relationship changes across market environments.

Return for Risk

RFHTX vs. LTTIX — Risk / Return Rank

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

RFHTX

RFHTX Risk / Return Rank: 57
RFHTX Sharpe Ratio Rank: 57
RFHTX Sortino Ratio Rank: 55
RFHTX Omega Ratio Rank: 56
RFHTX Calmar Ratio Rank: 53
RFHTX Martin Ratio Rank: 64

LTTIX

LTTIX Risk / Return Rank: 61
LTTIX Sharpe Ratio Rank: 64
LTTIX Sortino Ratio Rank: 71
LTTIX Omega Ratio Rank: 69
LTTIX Calmar Ratio Rank: 46
LTTIX Martin Ratio Rank: 56

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.

RFHTX vs. LTTIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds 2045 Target Date Retirement Fund Class R-6 (RFHTX) and MFS Lifetime 2025 Fund (LTTIX). 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.

	RFHTX	LTTIX	Difference
Sharpe ratio: Return per unit of total volatility	2.05	2.16	-0.10
Sortino ratio: Return per unit of downside risk	2.87	3.20	-0.33
Omega ratio: Gain probability vs. loss probability	1.38	1.42	-0.04
Calmar ratio: Return relative to maximum drawdown	2.66	2.47	+0.19
Martin ratio: Return relative to average drawdown	11.83	10.68	+1.15

RFHTX vs. LTTIX - Sharpe Ratio Comparison

The current RFHTX Sharpe Ratio is 2.05, which is comparable to the LTTIX Sharpe Ratio of 2.16. The chart below compares the historical Sharpe Ratios of RFHTX and LTTIX, 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

RFHTX vs. LTTIX - Drawdown Comparison

The maximum RFHTX drawdown since its inception was -28.95%, which is greater than LTTIX's maximum drawdown of -19.33%. Use the drawdown chart below to compare losses from any high point for RFHTX and LTTIX.

Drawdown Indicators

	RFHTX	LTTIX	Difference
Max Drawdown Largest peak-to-trough decline	-28.95%	-19.33%	-9.62%
Max Drawdown (1Y) Largest decline over 1 year	-9.16%	-3.64%	-5.52%
Max Drawdown (3Y) Largest decline over 3 years	-14.47%	-5.77%	-8.70%
Max Drawdown (5Y) Largest decline over 5 years	-25.62%	-16.92%	-8.70%
Max Drawdown (10Y) Largest decline over 10 years	-28.95%	-19.33%	-9.62%
Current Drawdown Current decline from peak	-0.30%	-0.45%	+0.15%
Average Drawdown Average peak-to-trough decline	-4.00%	-2.68%	-1.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.05%	0.84%	+1.21%

Volatility

RFHTX vs. LTTIX - Volatility Comparison

American Funds 2045 Target Date Retirement Fund Class R-6 (RFHTX) has a higher volatility of 4.63% compared to MFS Lifetime 2025 Fund (LTTIX) at 1.34%. This indicates that RFHTX's price experiences larger fluctuations and is considered to be riskier than LTTIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RFHTX	LTTIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.63%	1.34%	+3.29%
Volatility (6M) Calculated over the trailing 6-month period	9.75%	3.32%	+6.43%
Volatility (1Y) Calculated over the trailing 1-year period	11.89%	4.18%	+7.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.04%	6.37%	+7.67%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.63%	7.24%	+7.39%

RFHTX vs. LTTIX - Expense Ratio Comparison

RFHTX has a 0.37% expense ratio, which is higher than LTTIX's 0.00% expense ratio.

Dividends

RFHTX vs. LTTIX - Dividend Comparison

RFHTX's dividend yield for the trailing twelve months is around 5.55%, less than LTTIX's 11.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LTTIX MFS Lifetime 2025 Fund	11.54%	8.13%	7.07%	3.30%	5.88%	7.35%	2.83%	3.68%	4.32%	3.51%	4.03%	1.82%
RFHTX American Funds 2045 Target Date Retirement Fund Class R-6	5.55%	6.10%	3.67%	2.75%	7.05%	4.89%	3.45%	4.52%	5.18%	2.60%	3.78%	5.04%

Frequently Asked Questions

Can I hold both RFHTX and LTTIX in my portfolio?

RFHTX and LTTIX have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RFHTX or LTTIX?

RFHTX has higher volatility (4.63%) compared to LTTIX (1.34%). In terms of maximum drawdown, RFHTX dropped -28.95% vs LTTIX's -19.33%.

Which has better risk-adjusted returns?

LTTIX currently has the higher Sharpe Ratio (2.16 vs 2.05), 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.