BRWJX vs. MFEIX

Last updated Jun 4, 2026

BRWJX (MFS Blended Research Growth Equity Fund) and MFEIX (MFS Growth I) are both Large Cap Growth Equities funds from MFS. Over the past 10 years, BRWJX returned 17.18%/yr vs 17.67%/yr for MFEIX. With a 0.97 correlation, they move nearly in lockstep. BRWJX charges 0.49%/yr vs 0.60%/yr for MFEIX.

Performance

BRWJX vs. MFEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Blended Research Growth Equity Fund (BRWJX) and MFS Growth I (MFEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BRWJX achieves a 10.11% return, which is significantly higher than MFEIX's 6.29% return. Both investments have delivered pretty close results over the past 10 years, with BRWJX having a 17.18% annualized return and MFEIX not far ahead at 17.67%.

BRWJX

• 1D: -0.36%
• 1M: 7.39%
• YTD: 10.11%
• 6M: 10.16%
• 1Y: 28.06%
• 3Y*: 26.47%
• 5Y*: 15.51%
• 10Y*: 17.18%

MFEIX

• 1D: -0.34%
• 1M: 4.75%
• YTD: 6.29%
• 6M: 5.95%
• 1Y: 17.64%
• 3Y*: 26.61%
• 5Y*: 14.38%
• 10Y*: 17.67%

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

BRWJX vs. MFEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BRWJX MFS Blended Research Growth Equity Fund	10.11%	16.90%	35.62%	41.06%	-29.75%	28.77%	30.81%	32.37%	-4.78%	26.36%
MFEIX MFS Growth I	6.29%	12.34%	49.67%	36.15%	-31.14%	23.59%	31.65%	37.69%	2.30%	30.86%

Correlation

The correlation between BRWJX and MFEIX is 0.97 - 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	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.97
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 Sep 18, 2015	0.97

The correlation between BRWJX and MFEIX has been stable across timeframes, ranging from 0.97 to 0.98 - a consistent structural relationship.

Return for Risk

BRWJX vs. MFEIX — Risk / Return Rank

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

BRWJX

BRWJX Risk / Return Rank: 34
BRWJX Sharpe Ratio Rank: 41
BRWJX Sortino Ratio Rank: 36
BRWJX Omega Ratio Rank: 38
BRWJX Calmar Ratio Rank: 27
BRWJX Martin Ratio Rank: 28

MFEIX

MFEIX Risk / Return Rank: 14
MFEIX Sharpe Ratio Rank: 17
MFEIX Sortino Ratio Rank: 15
MFEIX Omega Ratio Rank: 16
MFEIX Calmar Ratio Rank: 11
MFEIX 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.

BRWJX vs. MFEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Blended Research Growth Equity Fund (BRWJX) and MFS Growth I (MFEIX). 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.

	BRWJX	MFEIX	Difference
Sharpe ratio: Return per unit of total volatility	1.86	1.15	+0.71
Sortino ratio: Return per unit of downside risk	2.52	1.64	+0.88
Omega ratio: Gain probability vs. loss probability	1.33	1.21	+0.12
Calmar ratio: Return relative to maximum drawdown	1.93	1.05	+0.88
Martin ratio: Return relative to average drawdown	6.69	3.43	+3.27
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BRWJX vs. MFEIX - Sharpe Ratio Comparison

The current BRWJX Sharpe Ratio is 1.86, which is higher than the MFEIX Sharpe Ratio of 1.15. The chart below compares the historical Sharpe Ratios of BRWJX and MFEIX, 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

	BRWJX	MFEIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.86	1.15	+0.71
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.66	+0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	0.83	-0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.79	0.44	+0.35

Drawdowns

BRWJX vs. MFEIX - Drawdown Comparison

The maximum BRWJX drawdown since its inception was -32.12%, smaller than the maximum MFEIX drawdown of -72.24%. Use the drawdown chart below to compare losses from any high point for BRWJX and MFEIX.

Drawdown Indicators

	BRWJX	MFEIX	Difference
Max Drawdown Largest peak-to-trough decline	-32.12%	-72.24%	+40.12%
Max Drawdown (1Y) Largest decline over 1 year	-15.10%	-17.30%	+2.20%
Max Drawdown (3Y) Largest decline over 3 years	-23.84%	-23.24%	-0.60%
Max Drawdown (5Y) Largest decline over 5 years	-32.12%	-36.11%	+3.99%
Max Drawdown (10Y) Largest decline over 10 years	-32.12%	-36.11%	+3.99%
Current Drawdown Current decline from peak	-0.36%	-0.34%	-0.02%
Average Drawdown Average peak-to-trough decline	-6.11%	-23.73%	+17.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.35%	5.31%	-0.96%

Volatility

BRWJX vs. MFEIX - Volatility Comparison

The current volatility for MFS Blended Research Growth Equity Fund (BRWJX) is 3.24%, while MFS Growth I (MFEIX) has a volatility of 3.59%. This indicates that BRWJX experiences smaller price fluctuations and is considered to be less risky than MFEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BRWJX	MFEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.24%	3.59%	-0.35%
Volatility (6M) Calculated over the trailing 6-month period	12.06%	12.24%	-0.18%
Volatility (1Y) Calculated over the trailing 1-year period	15.65%	15.83%	-0.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.26%	21.90%	-0.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.82%	21.24%	-0.42%

BRWJX vs. MFEIX - Expense Ratio Comparison

BRWJX has a 0.49% expense ratio, which is lower than MFEIX's 0.60% expense ratio.

Dividends

BRWJX vs. MFEIX - Dividend Comparison

BRWJX's dividend yield for the trailing twelve months is around 6.02%, less than MFEIX's 14.11% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRWJX MFS Blended Research Growth Equity Fund	6.02%	6.63%	4.91%	0.61%	2.48%	17.39%	6.83%	4.52%	7.81%	0.82%	0.39%	0.35%
MFEIX MFS Growth I	14.11%	14.99%	25.47%	4.86%	1.05%	2.76%	3.57%	1.57%	3.78%	2.50%	1.61%	3.65%

Frequently Asked Questions

Can I hold both BRWJX and MFEIX in my portfolio?

With a correlation of 0.97, BRWJX and MFEIX 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, BRWJX or MFEIX?

MFEIX has higher volatility (3.59%) compared to BRWJX (3.24%). In terms of maximum drawdown, BRWJX dropped -32.12% vs MFEIX's -72.24%.

Which has better risk-adjusted returns?

BRWJX currently has the higher Sharpe Ratio (1.86 vs 1.15), 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.