RTDYX vs. REBYX

Last updated Jun 24, 2026

RTDYX (Russell Investments Multifactor U.S. Equity Fund) and REBYX (Russell Investments U.S. Small Cap Equity Fund) are both mutual funds - RTDYX is a Large Cap Blend Equities fund managed by Russell, while REBYX is a Small Cap Blend Equities fund managed by Russell. Over the past 10 years, RTDYX returned 14.55%/yr vs 9.98%/yr for REBYX. Their correlation of 0.85 suggests significant overlap in exposure. RTDYX charges 0.35%/yr vs 0.90%/yr for REBYX.

Performance

RTDYX vs. REBYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Russell Investments Multifactor U.S. Equity Fund (RTDYX) 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, RTDYX achieves a 9.92% return, which is significantly lower than REBYX's 20.51% return. Over the past 10 years, RTDYX has outperformed REBYX with an annualized return of 14.55%, while REBYX has yielded a comparatively lower 9.98% annualized return.

RTDYX

• 1D: -0.28%
• 1M: 0.21%
• YTD: 9.92%
• 6M: 8.84%
• 1Y: 24.43%
• 3Y*: 19.93%
• 5Y*: 12.64%
• 10Y*: 14.55%

REBYX

• 1D: 0.23%
• 1M: 4.72%
• YTD: 20.51%
• 6M: 18.24%
• 1Y: 38.14%
• 3Y*: 16.17%
• 5Y*: 6.83%
• 10Y*: 9.98%

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

RTDYX vs. REBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RTDYX Russell Investments Multifactor U.S. Equity Fund	9.92%	16.05%	22.01%	24.92%	-16.48%	27.22%	13.88%	30.27%	-7.16%	21.59%
REBYX Russell Investments U.S. Small Cap Equity Fund	20.51%	8.86%	8.16%	13.81%	-16.14%	26.28%	13.04%	23.74%	-12.22%	2.12%

Correlation

The correlation between RTDYX and REBYX is 0.81, 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	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.85
Correlation (All Time) Calculated using the full available price history since Jan 2, 2015	0.85

The correlation between RTDYX and REBYX has been stable across timeframes, ranging from 0.81 to 0.85 - a consistent structural relationship.

Return for Risk

RTDYX vs. REBYX — Risk / Return Rank

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

RTDYX

RTDYX Risk / Return Rank: 65
RTDYX Sharpe Ratio Rank: 62
RTDYX Sortino Ratio Rank: 57
RTDYX Omega Ratio Rank: 58
RTDYX Calmar Ratio Rank: 70
RTDYX Martin Ratio Rank: 80

REBYX

REBYX Risk / Return Rank: 73
REBYX Sharpe Ratio Rank: 66
REBYX Sortino Ratio Rank: 67
REBYX Omega Ratio Rank: 54
REBYX Calmar Ratio Rank: 90
REBYX Martin Ratio Rank: 86

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.

RTDYX vs. REBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Russell Investments Multifactor U.S. Equity Fund (RTDYX) 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.

	RTDYX	REBYX	Difference
Sharpe ratio: Return per unit of total volatility	2.13	2.19	-0.06
Sortino ratio: Return per unit of downside risk	2.91	3.10	-0.19
Omega ratio: Gain probability vs. loss probability	1.39	1.37	+0.01
Calmar ratio: Return relative to maximum drawdown	3.09	4.35	-1.26
Martin ratio: Return relative to average drawdown	13.87	15.06	-1.19

RTDYX vs. REBYX - Sharpe Ratio Comparison

The current RTDYX Sharpe Ratio is 2.13, which is comparable to the REBYX Sharpe Ratio of 2.19. The chart below compares the historical Sharpe Ratios of RTDYX 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

RTDYX vs. REBYX - Drawdown Comparison

The maximum RTDYX drawdown since its inception was -37.43%, smaller than the maximum REBYX drawdown of -62.03%. Use the drawdown chart below to compare losses from any high point for RTDYX and REBYX.

Drawdown Indicators

	RTDYX	REBYX	Difference
Max Drawdown Largest peak-to-trough decline	-37.43%	-62.03%	+24.60%
Max Drawdown (1Y) Largest decline over 1 year	-8.33%	-9.16%	+0.83%
Max Drawdown (3Y) Largest decline over 3 years	-37.43%	-32.68%	-4.75%
Max Drawdown (5Y) Largest decline over 5 years	-37.43%	-32.68%	-4.75%
Max Drawdown (10Y) Largest decline over 10 years	-37.43%	-44.79%	+7.36%
Current Drawdown Current decline from peak	-5.41%	0.00%	-5.41%
Average Drawdown Average peak-to-trough decline	-6.29%	-11.15%	+4.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.85%	2.64%	-0.79%

Volatility

RTDYX vs. REBYX - Volatility Comparison

The current volatility for Russell Investments Multifactor U.S. Equity Fund (RTDYX) is 4.42%, while Russell Investments U.S. Small Cap Equity Fund (REBYX) has a volatility of 5.40%. This indicates that RTDYX experiences smaller price fluctuations and is considered to be less risky than REBYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RTDYX	REBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.42%	5.40%	-0.98%
Volatility (6M) Calculated over the trailing 6-month period	9.42%	13.00%	-3.58%
Volatility (1Y) Calculated over the trailing 1-year period	12.10%	18.25%	-6.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.47%	22.81%	+1.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.14%	23.56%	-1.42%

RTDYX vs. REBYX - Expense Ratio Comparison

RTDYX has a 0.35% expense ratio, which is lower than REBYX's 0.90% expense ratio.

Dividends

RTDYX vs. REBYX - Dividend Comparison

RTDYX's dividend yield for the trailing twelve months is around 31.81%, more than REBYX's 6.87% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
REBYX Russell Investments U.S. Small Cap Equity Fund	6.87%	8.28%	13.03%	2.64%	5.30%	31.12%	0.64%	4.46%	18.61%	0.33%	0.88%	8.23%
RTDYX Russell Investments Multifactor U.S. Equity Fund	31.81%	35.18%	31.60%	4.66%	6.03%	6.51%	3.44%	6.62%	11.47%	7.65%	1.79%	2.57%

Frequently Asked Questions

Can I hold both RTDYX and REBYX in my portfolio?

RTDYX and REBYX have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RTDYX or REBYX?

REBYX has higher volatility (5.40%) compared to RTDYX (4.42%). In terms of maximum drawdown, RTDYX dropped -37.43% vs REBYX's -62.03%.

Which has better risk-adjusted returns?

REBYX currently has the higher Sharpe Ratio (2.19 vs 2.13), 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.