PPYPX vs. MRSIX

Last updated Jun 24, 2026

PPYPX (PIMCO RAE International Fund) and MRSIX (MFS Research International Fund) are both Foreign Large Cap Equities funds. Over the past 10 years, PPYPX returned 9.24%/yr vs 9.53%/yr for MRSIX. Their correlation of 0.87 suggests significant overlap in exposure. PPYPX charges 0.60%/yr vs 0.76%/yr for MRSIX.

Performance

PPYPX vs. MRSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO RAE International Fund (PPYPX) and MFS Research International Fund (MRSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with PPYPX having a 10.21% return and MRSIX slightly higher at 10.64%. Both investments have delivered pretty close results over the past 10 years, with PPYPX having a 9.24% annualized return and MRSIX not far ahead at 9.53%.

PPYPX

• 1D: 0.10%
• 1M: -3.06%
• YTD: 10.21%
• 6M: 6.05%
• 1Y: 23.88%
• 3Y*: 16.43%
• 5Y*: 8.54%
• 10Y*: 9.24%

MRSIX

• 1D: 0.00%
• 1M: 2.46%
• YTD: 10.64%
• 6M: 10.35%
• 1Y: 20.07%
• 3Y*: 13.61%
• 5Y*: 6.35%
• 10Y*: 9.53%

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

PPYPX vs. MRSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PPYPX PIMCO RAE International Fund	10.21%	31.34%	-1.15%	18.13%	-8.73%	10.68%	2.05%	16.43%	-15.49%	24.89%
MRSIX MFS Research International Fund	10.64%	22.61%	3.06%	13.44%	-17.33%	11.87%	13.18%	27.98%	-13.98%	28.38%

Correlation

The correlation between PPYPX and MRSIX is 0.77, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.77
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.87
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.87

The correlation between PPYPX and MRSIX shifts across timeframes, from 0.77 (1 year) to 0.87 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PPYPX vs. MRSIX — Risk / Return Rank

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

PPYPX

PPYPX Risk / Return Rank: 55
PPYPX Sharpe Ratio Rank: 50
PPYPX Sortino Ratio Rank: 44
PPYPX Omega Ratio Rank: 46
PPYPX Calmar Ratio Rank: 77
PPYPX Martin Ratio Rank: 56

MRSIX

MRSIX Risk / Return Rank: 29
MRSIX Sharpe Ratio Rank: 31
MRSIX Sortino Ratio Rank: 31
MRSIX Omega Ratio Rank: 32
MRSIX Calmar Ratio Rank: 26
MRSIX Martin Ratio Rank: 28

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.

PPYPX vs. MRSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO RAE International Fund (PPYPX) and MFS Research International Fund (MRSIX). 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.

	PPYPX	MRSIX	Difference
Sharpe ratio: Return per unit of total volatility	1.91	1.49	+0.42
Sortino ratio: Return per unit of downside risk	2.57	2.14	+0.43
Omega ratio: Gain probability vs. loss probability	1.34	1.27	+0.07
Calmar ratio: Return relative to maximum drawdown	3.30	1.76	+1.54
Martin ratio: Return relative to average drawdown	10.59	6.06	+4.53

PPYPX vs. MRSIX - Sharpe Ratio Comparison

The current PPYPX Sharpe Ratio is 1.91, which is comparable to the MRSIX Sharpe Ratio of 1.49. The chart below compares the historical Sharpe Ratios of PPYPX and MRSIX, 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

PPYPX vs. MRSIX - Drawdown Comparison

The maximum PPYPX drawdown since its inception was -42.48%, smaller than the maximum MRSIX drawdown of -59.56%. Use the drawdown chart below to compare losses from any high point for PPYPX and MRSIX.

Drawdown Indicators

	PPYPX	MRSIX	Difference
Max Drawdown Largest peak-to-trough decline	-42.48%	-59.56%	+17.08%
Max Drawdown (1Y) Largest decline over 1 year	-7.48%	-11.64%	+4.16%
Max Drawdown (3Y) Largest decline over 3 years	-14.00%	-13.95%	-0.05%
Max Drawdown (5Y) Largest decline over 5 years	-35.65%	-30.73%	-4.92%
Max Drawdown (10Y) Largest decline over 10 years	-42.48%	-30.73%	-11.75%
Current Drawdown Current decline from peak	-4.57%	-0.33%	-4.24%
Average Drawdown Average peak-to-trough decline	-10.11%	-12.73%	+2.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.32%	3.36%	-1.04%

Volatility

PPYPX vs. MRSIX - Volatility Comparison

The current volatility for PIMCO RAE International Fund (PPYPX) is 3.21%, while MFS Research International Fund (MRSIX) has a volatility of 4.59%. This indicates that PPYPX experiences smaller price fluctuations and is considered to be less risky than MRSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PPYPX	MRSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.21%	4.59%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	10.22%	11.32%	-1.10%
Volatility (1Y) Calculated over the trailing 1-year period	12.98%	13.76%	-0.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.54%	15.02%	+4.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.96%	15.44%	+3.52%

PPYPX vs. MRSIX - Expense Ratio Comparison

PPYPX has a 0.60% expense ratio, which is lower than MRSIX's 0.76% expense ratio.

Dividends

PPYPX vs. MRSIX - Dividend Comparison

PPYPX's dividend yield for the trailing twelve months is around 7.06%, more than MRSIX's 4.75% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MRSIX MFS Research International Fund	4.75%	5.26%	2.00%	1.67%	1.57%	1.29%	0.92%	1.79%	5.48%	1.21%	1.97%	1.89%
PPYPX PIMCO RAE International Fund	7.06%	7.78%	6.57%	10.09%	7.20%	27.06%	2.23%	4.20%	5.96%	2.53%	2.41%	0.00%

Frequently Asked Questions

Can I hold both PPYPX and MRSIX in my portfolio?

PPYPX and MRSIX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PPYPX or MRSIX?

MRSIX has higher volatility (4.59%) compared to PPYPX (3.21%). In terms of maximum drawdown, PPYPX dropped -42.48% vs MRSIX's -59.56%.

Which has better risk-adjusted returns?

PPYPX currently has the higher Sharpe Ratio (1.91 vs 1.49), 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.