BRXAX vs. FSPSX

Last updated Jun 23, 2026

BRXAX (MFS Blended Research International Equity Fund Class A) and FSPSX (Fidelity International Index Fund) are both Foreign Large Cap Equities funds - BRXAX tracks the MSCI All Country World (ex-US) Index (net div) while FSPSX tracks the MSCI EAFE Index. Both are passively managed. Over the past 10 years, BRXAX returned 11.51%/yr vs 9.67%/yr for FSPSX. Their correlation of 0.94 suggests significant overlap in exposure. BRXAX charges 0.77%/yr vs 0.04%/yr for FSPSX.

Performance

BRXAX vs. FSPSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Blended Research International Equity Fund Class A (BRXAX) and Fidelity International Index Fund (FSPSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BRXAX achieves a 18.23% return, which is significantly higher than FSPSX's 10.54% return. Over the past 10 years, BRXAX has outperformed FSPSX with an annualized return of 11.51%, while FSPSX has yielded a comparatively lower 9.67% annualized return.

BRXAX

• 1D: 0.97%
• 1M: 4.64%
• YTD: 18.23%
• 6M: 19.05%
• 1Y: 40.24%
• 3Y*: 23.79%
• 5Y*: 13.14%
• 10Y*: 11.51%

FSPSX

• 1D: 0.76%
• 1M: 1.93%
• YTD: 10.54%
• 6M: 11.05%
• 1Y: 25.44%
• 3Y*: 16.37%
• 5Y*: 9.50%
• 10Y*: 9.67%

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

BRXAX vs. FSPSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BRXAX MFS Blended Research International Equity Fund Class A	18.23%	39.54%	11.62%	14.03%	-13.57%	13.21%	8.90%	21.79%	-15.77%	24.93%
FSPSX Fidelity International Index Fund	10.54%	31.98%	3.70%	18.31%	-14.23%	11.45%	8.16%	22.03%	-13.55%	25.37%

Correlation

The correlation between BRXAX and FSPSX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.94
Correlation (All Time) Calculated using the full available price history since Sep 17, 2015	0.94

The correlation between BRXAX and FSPSX has been stable across timeframes, ranging from 0.90 to 0.94 - a consistent structural relationship.

Return for Risk

BRXAX vs. FSPSX — Risk / Return Rank

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

BRXAX

BRXAX Risk / Return Rank: 83
BRXAX Sharpe Ratio Rank: 89
BRXAX Sortino Ratio Rank: 83
BRXAX Omega Ratio Rank: 83
BRXAX Calmar Ratio Rank: 82
BRXAX Martin Ratio Rank: 79

FSPSX

FSPSX Risk / Return Rank: 36
FSPSX Sharpe Ratio Rank: 36
FSPSX Sortino Ratio Rank: 35
FSPSX Omega Ratio Rank: 35
FSPSX Calmar Ratio Rank: 36
FSPSX Martin Ratio Rank: 39

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.

BRXAX vs. FSPSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Blended Research International Equity Fund Class A (BRXAX) and Fidelity International Index Fund (FSPSX). 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.

	BRXAX	FSPSX	Difference
Sharpe ratio: Return per unit of total volatility	2.73	1.61	+1.12
Sortino ratio: Return per unit of downside risk	3.63	2.28	+1.35
Omega ratio: Gain probability vs. loss probability	1.51	1.29	+0.22
Calmar ratio: Return relative to maximum drawdown	3.54	2.15	+1.39
Martin ratio: Return relative to average drawdown	13.72	8.05	+5.67

BRXAX vs. FSPSX - Sharpe Ratio Comparison

The current BRXAX Sharpe Ratio is 2.73, which is higher than the FSPSX Sharpe Ratio of 1.61. The chart below compares the historical Sharpe Ratios of BRXAX and FSPSX, 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

BRXAX vs. FSPSX - Drawdown Comparison

The maximum BRXAX drawdown since its inception was -36.59%, which is greater than FSPSX's maximum drawdown of -33.69%. Use the drawdown chart below to compare losses from any high point for BRXAX and FSPSX.

Drawdown Indicators

	BRXAX	FSPSX	Difference
Max Drawdown Largest peak-to-trough decline	-36.59%	-33.69%	-2.90%
Max Drawdown (1Y) Largest decline over 1 year	-11.23%	-11.39%	+0.16%
Max Drawdown (3Y) Largest decline over 3 years	-12.71%	-13.58%	+0.87%
Max Drawdown (5Y) Largest decline over 5 years	-26.63%	-29.41%	+2.78%
Max Drawdown (10Y) Largest decline over 10 years	-36.59%	-33.69%	-2.90%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-6.96%	-6.53%	-0.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.89%	3.04%	-0.15%

Volatility

BRXAX vs. FSPSX - Volatility Comparison

MFS Blended Research International Equity Fund Class A (BRXAX) has a higher volatility of 5.97% compared to Fidelity International Index Fund (FSPSX) at 4.93%. This indicates that BRXAX's price experiences larger fluctuations and is considered to be riskier than FSPSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BRXAX	FSPSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.97%	4.93%	+1.04%
Volatility (6M) Calculated over the trailing 6-month period	12.63%	12.71%	-0.08%
Volatility (1Y) Calculated over the trailing 1-year period	14.56%	15.26%	-0.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.85%	16.07%	-1.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.84%	16.56%	-0.72%

BRXAX vs. FSPSX - Expense Ratio Comparison

BRXAX has a 0.77% expense ratio, which is higher than FSPSX's 0.04% expense ratio.

Dividends

BRXAX vs. FSPSX - Dividend Comparison

BRXAX's dividend yield for the trailing twelve months is around 3.40%, more than FSPSX's 2.85% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRXAX MFS Blended Research International Equity Fund Class A	3.40%	4.02%	4.63%	2.53%	2.52%	5.21%	2.13%	2.66%	6.55%	1.13%	0.40%	1.18%
FSPSX Fidelity International Index Fund	2.85%	3.15%	3.27%	2.79%	2.66%	3.07%	1.84%	3.18%	2.79%	2.50%	3.08%	2.79%

Frequently Asked Questions

Can I hold both BRXAX and FSPSX in my portfolio?

BRXAX and FSPSX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BRXAX or FSPSX?

BRXAX has higher volatility (5.97%) compared to FSPSX (4.93%). In terms of maximum drawdown, BRXAX dropped -36.59% vs FSPSX's -33.69%.

Which has better risk-adjusted returns?

BRXAX currently has the higher Sharpe Ratio (2.73 vs 1.61), 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.