LFIBX vs. MIEIX

Last updated Jun 6, 2026

LFIBX (MFS Lifetime 2055 Fund Class B) and MIEIX (MFS International Equity Fund Class R6) are both mutual funds - LFIBX is a Target Date fund actively managed by MFS, while MIEIX is a Foreign Large Cap Equities fund managed by MFS. Over the past 10 years, LFIBX returned 10.11%/yr vs 9.76%/yr for MIEIX. Their correlation of 0.85 suggests significant overlap in exposure. LFIBX charges 1.57%/yr vs 0.68%/yr for MIEIX.

Performance

LFIBX vs. MIEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Lifetime 2055 Fund Class B (LFIBX) and MFS International Equity Fund Class R6 (MIEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LFIBX achieves a 10.11% return, which is significantly higher than MIEIX's 3.20% return. Both investments have delivered pretty close results over the past 10 years, with LFIBX having a 10.11% annualized return and MIEIX not far behind at 9.76%.

LFIBX

• 1D: 0.46%
• 1M: 1.35%
• YTD: 10.11%
• 6M: 10.47%
• 1Y: 20.15%
• 3Y*: 15.82%
• 5Y*: 7.80%
• 10Y*: 10.11%

MIEIX

• 1D: 0.67%
• 1M: 0.67%
• YTD: 3.20%
• 6M: 5.41%
• 1Y: 9.83%
• 3Y*: 12.13%
• 5Y*: 7.07%
• 10Y*: 9.76%

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

LFIBX vs. MIEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LFIBX MFS Lifetime 2055 Fund Class B	10.11%	15.11%	12.05%	15.69%	-16.49%	19.19%	12.15%	26.62%	-8.87%	20.03%
MIEIX MFS International Equity Fund Class R6	3.20%	23.22%	4.13%	19.06%	-14.82%	15.13%	11.11%	28.42%	-10.66%	28.01%

Correlation

The correlation between LFIBX and MIEIX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (10Y) Calculated over the trailing 10-year period	0.84
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.85

The correlation between LFIBX and MIEIX has been stable across timeframes, ranging from 0.82 to 0.85 - a consistent structural relationship.

Return for Risk

LFIBX vs. MIEIX — Risk / Return Rank

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

LFIBX

LFIBX Risk / Return Rank: 46
LFIBX Sharpe Ratio Rank: 45
LFIBX Sortino Ratio Rank: 44
LFIBX Omega Ratio Rank: 45
LFIBX Calmar Ratio Rank: 43
LFIBX Martin Ratio Rank: 51

MIEIX

MIEIX Risk / Return Rank: 10
MIEIX Sharpe Ratio Rank: 10
MIEIX Sortino Ratio Rank: 10
MIEIX Omega Ratio Rank: 10
MIEIX Calmar Ratio Rank: 10
MIEIX Martin Ratio Rank: 11

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.

LFIBX vs. MIEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Lifetime 2055 Fund Class B (LFIBX) and MFS International Equity Fund Class R6 (MIEIX). 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.

	LFIBX	MIEIX	Difference
Sharpe ratio: Return per unit of total volatility	1.91	0.72	+1.19
Sortino ratio: Return per unit of downside risk	2.71	1.10	+1.61
Omega ratio: Gain probability vs. loss probability	1.35	1.14	+0.21
Calmar ratio: Return relative to maximum drawdown	2.39	0.84	+1.54
Martin ratio: Return relative to average drawdown	10.16	2.97	+7.20
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LFIBX vs. MIEIX - Sharpe Ratio Comparison

The current LFIBX Sharpe Ratio is 1.91, which is higher than the MIEIX Sharpe Ratio of 0.72. The chart below compares the historical Sharpe Ratios of LFIBX and MIEIX, 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

	LFIBX	MIEIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.91	0.72	+1.19
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.56	0.46	+0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.68	0.61	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.68	0.46	+0.21

Drawdowns

LFIBX vs. MIEIX - Drawdown Comparison

The maximum LFIBX drawdown since its inception was -32.85%, smaller than the maximum MIEIX drawdown of -53.13%. Use the drawdown chart below to compare losses from any high point for LFIBX and MIEIX.

Drawdown Indicators

	LFIBX	MIEIX	Difference
Max Drawdown Largest peak-to-trough decline	-32.85%	-53.13%	+20.28%
Max Drawdown (1Y) Largest decline over 1 year	-8.45%	-11.26%	+2.81%
Max Drawdown (3Y) Largest decline over 3 years	-14.66%	-13.43%	-1.23%
Max Drawdown (5Y) Largest decline over 5 years	-23.85%	-28.07%	+4.22%
Max Drawdown (10Y) Largest decline over 10 years	-32.85%	-31.35%	-1.50%
Current Drawdown Current decline from peak	-0.21%	-1.53%	+1.32%
Average Drawdown Average peak-to-trough decline	-4.14%	-8.98%	+4.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.98%	3.20%	-1.22%

Volatility

LFIBX vs. MIEIX - Volatility Comparison

The current volatility for MFS Lifetime 2055 Fund Class B (LFIBX) is 2.93%, while MFS International Equity Fund Class R6 (MIEIX) has a volatility of 3.43%. This indicates that LFIBX experiences smaller price fluctuations and is considered to be less risky than MIEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LFIBX	MIEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.93%	3.43%	-0.50%
Volatility (6M) Calculated over the trailing 6-month period	8.32%	10.24%	-1.92%
Volatility (1Y) Calculated over the trailing 1-year period	10.57%	13.14%	-2.57%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.98%	15.34%	-1.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.94%	15.94%	-1.00%

LFIBX vs. MIEIX - Expense Ratio Comparison

LFIBX has a 1.57% expense ratio, which is higher than MIEIX's 0.68% expense ratio.

Dividends

LFIBX vs. MIEIX - Dividend Comparison

LFIBX's dividend yield for the trailing twelve months is around 4.91%, more than MIEIX's 2.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LFIBX MFS Lifetime 2055 Fund Class B	4.91%	5.40%	3.42%	2.35%	5.13%	7.01%	1.39%	3.62%	2.43%	1.84%	1.85%	1.34%
MIEIX MFS International Equity Fund Class R6	2.59%	2.68%	1.47%	1.67%	1.26%	5.40%	1.00%	3.12%	1.63%	1.85%	1.78%	1.71%

Frequently Asked Questions

Can I hold both LFIBX and MIEIX in my portfolio?

LFIBX and MIEIX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LFIBX or MIEIX?

MIEIX has higher volatility (3.43%) compared to LFIBX (2.93%). In terms of maximum drawdown, LFIBX dropped -32.85% vs MIEIX's -53.13%.

Which has better risk-adjusted returns?

LFIBX currently has the higher Sharpe Ratio (1.91 vs 0.72), 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.