MLFIX vs. LTRIX

Last updated Jun 4, 2026

MLFIX (MFS Lifetime 2040 Fund) and LTRIX (Principal LifeTime 2045 Fund) are both Target Retirement Date funds. Over the past 10 years, MLFIX returned 10.57%/yr vs 11.01%/yr for LTRIX. With a 0.98 correlation, they move nearly in lockstep. MLFIX charges 0.00%/yr vs 0.01%/yr for LTRIX.

Performance

MLFIX vs. LTRIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Lifetime 2040 Fund (MLFIX) and Principal LifeTime 2045 Fund (LTRIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with MLFIX having a 8.82% return and LTRIX slightly lower at 8.73%. Both investments have delivered pretty close results over the past 10 years, with MLFIX having a 10.57% annualized return and LTRIX not far ahead at 11.01%.

MLFIX

• 1D: 0.36%
• 1M: 3.15%
• YTD: 8.82%
• 6M: 9.41%
• 1Y: 19.05%
• 3Y*: 15.51%
• 5Y*: 8.23%
• 10Y*: 10.57%

LTRIX

• 1D: 0.42%
• 1M: 4.28%
• YTD: 8.73%
• 6M: 9.08%
• 1Y: 21.03%
• 3Y*: 17.85%
• 5Y*: 8.76%
• 10Y*: 11.01%

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

MLFIX vs. LTRIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MLFIX MFS Lifetime 2040 Fund	8.82%	15.08%	12.35%	16.29%	-15.32%	18.94%	13.13%	26.08%	-7.51%	20.79%
LTRIX Principal LifeTime 2045 Fund	8.73%	16.69%	16.90%	19.40%	-18.51%	16.55%	16.33%	25.81%	-8.34%	21.38%

Correlation

The correlation between MLFIX and LTRIX 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	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Mar 4, 2008	0.98

The correlation between MLFIX and LTRIX has been stable across timeframes, ranging from 0.96 to 0.98 - a consistent structural relationship.

Return for Risk

MLFIX vs. LTRIX — Risk / Return Rank

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

MLFIX

MLFIX Risk / Return Rank: 52
MLFIX Sharpe Ratio Rank: 52
MLFIX Sortino Ratio Rank: 51
MLFIX Omega Ratio Rank: 51
MLFIX Calmar Ratio Rank: 48
MLFIX Martin Ratio Rank: 57

LTRIX

LTRIX Risk / Return Rank: 50
LTRIX Sharpe Ratio Rank: 46
LTRIX Sortino Ratio Rank: 45
LTRIX Omega Ratio Rank: 47
LTRIX Calmar Ratio Rank: 50
LTRIX Martin Ratio Rank: 60

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.

MLFIX vs. LTRIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Lifetime 2040 Fund (MLFIX) and Principal LifeTime 2045 Fund (LTRIX). 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.

	MLFIX	LTRIX	Difference
Sharpe ratio: Return per unit of total volatility	2.13	2.01	+0.12
Sortino ratio: Return per unit of downside risk	3.04	2.84	+0.19
Omega ratio: Gain probability vs. loss probability	1.39	1.37	+0.02
Calmar ratio: Return relative to maximum drawdown	2.66	2.68	-0.01
Martin ratio: Return relative to average drawdown	11.47	12.01	-0.54
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MLFIX vs. LTRIX - Sharpe Ratio Comparison

The current MLFIX Sharpe Ratio is 2.13, which is comparable to the LTRIX Sharpe Ratio of 2.01. The chart below compares the historical Sharpe Ratios of MLFIX and LTRIX, 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

	MLFIX	LTRIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.13	2.01	+0.12
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.65	0.60	+0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.76	0.75	+0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.48	0.00

Drawdowns

MLFIX vs. LTRIX - Drawdown Comparison

The maximum MLFIX drawdown since its inception was -54.99%, which is greater than LTRIX's maximum drawdown of -51.39%. Use the drawdown chart below to compare losses from any high point for MLFIX and LTRIX.

Drawdown Indicators

	MLFIX	LTRIX	Difference
Max Drawdown Largest peak-to-trough decline	-54.99%	-51.39%	-3.60%
Max Drawdown (1Y) Largest decline over 1 year	-7.29%	-8.04%	+0.75%
Max Drawdown (3Y) Largest decline over 3 years	-12.76%	-14.47%	+1.71%
Max Drawdown (5Y) Largest decline over 5 years	-22.37%	-26.25%	+3.88%
Max Drawdown (10Y) Largest decline over 10 years	-31.66%	-31.56%	-0.10%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-7.06%	-7.20%	+0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.69%	1.79%	-0.10%

Volatility

MLFIX vs. LTRIX - Volatility Comparison

The current volatility for MFS Lifetime 2040 Fund (MLFIX) is 2.51%, while Principal LifeTime 2045 Fund (LTRIX) has a volatility of 3.06%. This indicates that MLFIX experiences smaller price fluctuations and is considered to be less risky than LTRIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MLFIX	LTRIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.51%	3.06%	-0.55%
Volatility (6M) Calculated over the trailing 6-month period	7.15%	8.62%	-1.47%
Volatility (1Y) Calculated over the trailing 1-year period	9.12%	10.73%	-1.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.65%	14.59%	-1.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.94%	14.82%	-0.88%

MLFIX vs. LTRIX - Expense Ratio Comparison

MLFIX has a 0.00% expense ratio, which is lower than LTRIX's 0.01% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

MLFIX vs. LTRIX - Dividend Comparison

MLFIX's dividend yield for the trailing twelve months is around 7.15%, less than LTRIX's 8.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LTRIX Principal LifeTime 2045 Fund	8.56%	9.31%	9.40%	4.25%	8.71%	6.75%	4.62%	6.93%	7.50%	4.57%	4.48%	5.42%
MLFIX MFS Lifetime 2040 Fund	7.15%	7.79%	5.41%	3.58%	6.61%	8.92%	3.07%	5.79%	6.06%	3.56%	6.91%	2.20%

Frequently Asked Questions

Can I hold both MLFIX and LTRIX in my portfolio?

With a correlation of 0.96, MLFIX and LTRIX 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, MLFIX or LTRIX?

LTRIX has higher volatility (3.06%) compared to MLFIX (2.51%). In terms of maximum drawdown, MLFIX dropped -54.99% vs LTRIX's -51.39%.

Which has better risk-adjusted returns?

MLFIX currently has the higher Sharpe Ratio (2.13 vs 2.01), 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.