REMSX vs. REBYX

Last updated Jun 23, 2026

REMSX (Russell Investments Emerging Markets Fund) and REBYX (Russell Investments U.S. Small Cap Equity Fund) are both mutual funds - REMSX is a Emerging Markets Diversified fund managed by Russell, while REBYX is a Small Cap Blend Equities fund managed by Russell. Over the past 10 years, REMSX returned 9.74%/yr vs 9.68%/yr for REBYX. A 0.61 correlation means they provide meaningful diversification when combined. REMSX charges 1.19%/yr vs 0.90%/yr for REBYX.

Performance

REMSX vs. REBYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Russell Investments Emerging Markets Fund (REMSX) and Russell Investments U.S. Small Cap Equity Fund (REBYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, REMSX achieves a 30.40% return, which is significantly higher than REBYX's 20.23% return. Both investments have delivered pretty close results over the past 10 years, with REMSX having a 9.74% annualized return and REBYX not far behind at 9.68%.

REMSX

• 1D: 1.91%
• 1M: 6.60%
• YTD: 30.40%
• 6M: 31.53%
• 1Y: 55.40%
• 3Y*: 23.25%
• 5Y*: 8.26%
• 10Y*: 9.74%

REBYX

• 1D: 1.75%
• 1M: 4.48%
• YTD: 20.23%
• 6M: 17.39%
• 1Y: 39.38%
• 3Y*: 15.06%
• 5Y*: 7.34%
• 10Y*: 9.68%

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

REMSX vs. REBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
REMSX Russell Investments Emerging Markets Fund	30.40%	33.98%	8.16%	8.37%	-22.59%	0.75%	9.85%	19.11%	-16.74%	35.45%
REBYX Russell Investments U.S. Small Cap Equity Fund	20.23%	8.86%	8.16%	13.81%	-16.14%	26.28%	13.04%	23.74%	-12.22%	2.12%

Correlation

The correlation between REMSX and REBYX is 0.50, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.57
Correlation (10Y) Calculated over the trailing 10-year period	0.57
Correlation (All Time) Calculated using the full available price history since Jan 2, 2001	0.61

The correlation between REMSX and REBYX shifts across timeframes, from 0.50 (1 year) to 0.61 (all time), reflecting how their relationship changes across market environments.

Return for Risk

REMSX vs. REBYX — Risk / Return Rank

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

REMSX

REMSX Risk / Return Rank: 87
REMSX Sharpe Ratio Rank: 93
REMSX Sortino Ratio Rank: 82
REMSX Omega Ratio Rank: 85
REMSX Calmar Ratio Rank: 87
REMSX Martin Ratio Rank: 86

REBYX

REBYX Risk / Return Rank: 71
REBYX Sharpe Ratio Rank: 64
REBYX Sortino Ratio Rank: 65
REBYX Omega Ratio Rank: 52
REBYX Calmar Ratio Rank: 90
REBYX Martin Ratio Rank: 85

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.

REMSX vs. REBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Russell Investments Emerging Markets Fund (REMSX) and Russell Investments U.S. Small Cap Equity Fund (REBYX). 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.

	REMSX	REBYX	Difference
Sharpe ratio: Return per unit of total volatility	2.90	2.15	+0.75
Sortino ratio: Return per unit of downside risk	3.60	3.05	+0.54
Omega ratio: Gain probability vs. loss probability	1.54	1.36	+0.17
Calmar ratio: Return relative to maximum drawdown	3.96	4.27	-0.32
Martin ratio: Return relative to average drawdown	15.00	14.78	+0.22

REMSX vs. REBYX - Sharpe Ratio Comparison

The current REMSX Sharpe Ratio is 2.90, which is higher than the REBYX Sharpe Ratio of 2.15. The chart below compares the historical Sharpe Ratios of REMSX and REBYX, 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

REMSX vs. REBYX - Drawdown Comparison

The maximum REMSX drawdown since its inception was -66.80%, which is greater than REBYX's maximum drawdown of -62.03%. Use the drawdown chart below to compare losses from any high point for REMSX and REBYX.

Drawdown Indicators

	REMSX	REBYX	Difference
Max Drawdown Largest peak-to-trough decline	-66.80%	-62.03%	-4.77%
Max Drawdown (1Y) Largest decline over 1 year	-13.87%	-9.16%	-4.71%
Max Drawdown (3Y) Largest decline over 3 years	-16.56%	-32.68%	+16.12%
Max Drawdown (5Y) Largest decline over 5 years	-37.22%	-32.68%	-4.54%
Max Drawdown (10Y) Largest decline over 10 years	-41.09%	-44.79%	+3.70%
Current Drawdown Current decline from peak	-0.11%	0.00%	-0.11%
Average Drawdown Average peak-to-trough decline	-19.32%	-11.15%	-8.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.65%	2.64%	+1.01%

Volatility

REMSX vs. REBYX - Volatility Comparison

Russell Investments Emerging Markets Fund (REMSX) has a higher volatility of 9.38% compared to Russell Investments U.S. Small Cap Equity Fund (REBYX) at 5.76%. This indicates that REMSX's price experiences larger fluctuations and is considered to be riskier than REBYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	REMSX	REBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.38%	5.76%	+3.62%
Volatility (6M) Calculated over the trailing 6-month period	16.83%	13.02%	+3.81%
Volatility (1Y) Calculated over the trailing 1-year period	18.93%	18.22%	+0.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.91%	22.82%	-5.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.50%	23.56%	-6.06%

REMSX vs. REBYX - Expense Ratio Comparison

REMSX has a 1.19% expense ratio, which is higher than REBYX's 0.90% expense ratio.

Dividends

REMSX vs. REBYX - Dividend Comparison

REMSX's dividend yield for the trailing twelve months is around 1.51%, less than REBYX's 6.89% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
REBYX Russell Investments U.S. Small Cap Equity Fund	6.89%	8.28%	13.03%	2.64%	5.30%	31.12%	0.64%	4.46%	18.61%	0.33%	0.88%	8.23%
REMSX Russell Investments Emerging Markets Fund	1.51%	1.97%	2.58%	2.42%	2.17%	14.04%	0.59%	2.51%	4.57%	1.10%	1.08%	0.13%

Frequently Asked Questions

Can I hold both REMSX and REBYX in my portfolio?

REMSX and REBYX have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, REMSX or REBYX?

REMSX has higher volatility (9.38%) compared to REBYX (5.76%). In terms of maximum drawdown, REMSX dropped -66.80% vs REBYX's -62.03%.

Which has better risk-adjusted returns?

REMSX currently has the higher Sharpe Ratio (2.90 vs 2.15), 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.