RFBSX vs. REBYX

Last updated Jun 26, 2026

RFBSX (Russell Investments Short Duration Bond Fund) and REBYX (Russell Investments U.S. Small Cap Equity Fund) are both mutual funds - RFBSX is a Short-Term Bond fund managed by Russell, while REBYX is a Small Cap Blend Equities fund managed by Russell. Over the past 10 years, RFBSX returned 2.30%/yr vs 10.02%/yr for REBYX. At a correlation of -0.08, they often move in opposite directions. RFBSX charges 0.55%/yr vs 0.90%/yr for REBYX.

Performance

RFBSX vs. REBYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Russell Investments Short Duration Bond Fund (RFBSX) 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, RFBSX achieves a 0.89% return, which is significantly lower than REBYX's 20.94% return. Over the past 10 years, RFBSX has underperformed REBYX with an annualized return of 2.30%, while REBYX has yielded a comparatively higher 10.02% annualized return.

RFBSX

• 1D: 0.16%
• 1M: 0.27%
• YTD: 0.89%
• 6M: 0.99%
• 1Y: 3.59%
• 3Y*: 5.01%
• 5Y*: 2.10%
• 10Y*: 2.30%

REBYX

• 1D: 0.91%
• 1M: 3.41%
• YTD: 20.94%
• 6M: 18.35%
• 1Y: 38.63%
• 3Y*: 16.31%
• 5Y*: 6.59%
• 10Y*: 10.02%

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

RFBSX vs. REBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RFBSX Russell Investments Short Duration Bond Fund	0.89%	5.92%	4.67%	5.06%	-4.95%	-0.75%	4.98%	4.69%	1.27%	1.33%
REBYX Russell Investments U.S. Small Cap Equity Fund	20.94%	8.86%	8.16%	13.81%	-16.14%	26.28%	13.04%	23.74%	-12.22%	2.12%

Correlation

The correlation between RFBSX and REBYX is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (5Y) Calculated over the trailing 5-year period	0.16
Correlation (10Y) Calculated over the trailing 10-year period	0.05
Correlation (All Time) Calculated using the full available price history since Jan 2, 2001	-0.08

The correlation between RFBSX and REBYX shifts across timeframes, from -0.08 (all time) to 0.28 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

RFBSX vs. REBYX — Risk / Return Rank

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

RFBSX

RFBSX Risk / Return Rank: 89
RFBSX Sharpe Ratio Rank: 90
RFBSX Sortino Ratio Rank: 91
RFBSX Omega Ratio Rank: 88
RFBSX Calmar Ratio Rank: 86
RFBSX Martin Ratio Rank: 90

REBYX

REBYX Risk / Return Rank: 76
REBYX Sharpe Ratio Rank: 71
REBYX Sortino Ratio Rank: 72
REBYX Omega Ratio Rank: 60
REBYX Calmar Ratio Rank: 90
REBYX Martin Ratio Rank: 87

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.

RFBSX vs. REBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Russell Investments Short Duration Bond Fund (RFBSX) 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.

	RFBSX	REBYX	Difference
Sharpe ratio: Return per unit of total volatility	2.57	2.04	+0.53
Sortino ratio: Return per unit of downside risk	4.01	2.92	+1.09
Omega ratio: Gain probability vs. loss probability	1.53	1.35	+0.18
Calmar ratio: Return relative to maximum drawdown	3.52	4.06	-0.53
Martin ratio: Return relative to average drawdown	14.78	14.03	+0.75

RFBSX vs. REBYX - Sharpe Ratio Comparison

The current RFBSX Sharpe Ratio is 2.57, which is comparable to the REBYX Sharpe Ratio of 2.04. The chart below compares the historical Sharpe Ratios of RFBSX 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

RFBSX vs. REBYX - Drawdown Comparison

The maximum RFBSX drawdown since its inception was -9.71%, smaller than the maximum REBYX drawdown of -62.03%. Use the drawdown chart below to compare losses from any high point for RFBSX and REBYX.

Drawdown Indicators

	RFBSX	REBYX	Difference
Max Drawdown Largest peak-to-trough decline	-9.71%	-62.03%	+52.32%
Max Drawdown (1Y) Largest decline over 1 year	-1.04%	-9.16%	+8.12%
Max Drawdown (3Y) Largest decline over 3 years	-1.04%	-32.68%	+31.64%
Max Drawdown (5Y) Largest decline over 5 years	-7.80%	-32.68%	+24.88%
Max Drawdown (10Y) Largest decline over 10 years	-7.80%	-44.79%	+36.99%
Current Drawdown Current decline from peak	-0.05%	0.00%	-0.05%
Average Drawdown Average peak-to-trough decline	-2.21%	-11.15%	+8.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.25%	2.64%	-2.39%

Volatility

RFBSX vs. REBYX - Volatility Comparison

The current volatility for Russell Investments Short Duration Bond Fund (RFBSX) is 0.57%, while Russell Investments U.S. Small Cap Equity Fund (REBYX) has a volatility of 5.47%. This indicates that RFBSX 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

	RFBSX	REBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.57%	5.47%	-4.90%
Volatility (6M) Calculated over the trailing 6-month period	1.11%	13.03%	-11.92%
Volatility (1Y) Calculated over the trailing 1-year period	1.43%	18.21%	-16.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.07%	22.81%	-20.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.75%	23.52%	-21.77%

RFBSX vs. REBYX - Expense Ratio Comparison

RFBSX has a 0.55% expense ratio, which is lower than REBYX's 0.90% expense ratio.

Dividends

RFBSX vs. REBYX - Dividend Comparison

RFBSX's dividend yield for the trailing twelve months is around 4.69%, less than REBYX's 6.85% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
REBYX Russell Investments U.S. Small Cap Equity Fund	6.85%	8.28%	13.03%	2.64%	5.30%	31.12%	0.64%	4.46%	18.61%	0.33%	0.88%	8.23%
RFBSX Russell Investments Short Duration Bond Fund	4.69%	4.85%	3.91%	2.83%	0.68%	1.72%	2.23%	2.43%	2.32%	1.33%	1.73%	1.48%

Frequently Asked Questions

Can I hold both RFBSX and REBYX in my portfolio?

RFBSX and REBYX have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RFBSX or REBYX?

REBYX has higher volatility (5.47%) compared to RFBSX (0.57%). In terms of maximum drawdown, RFBSX dropped -9.71% vs REBYX's -62.03%.

Which has better risk-adjusted returns?

RFBSX currently has the higher Sharpe Ratio (2.57 vs 2.04), 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.