BRUSX vs. BRSIX

Last updated Jun 24, 2026

BRUSX (Bridgeway Ultra Small Company Fund) and BRSIX (Bridgeway Ultra Small Company Market Fund) are both Small Cap Value Equities funds from Bridgeway. Over the past 10 years, BRUSX returned 9.53%/yr vs 8.64%/yr for BRSIX. Their correlation of 0.90 suggests significant overlap in exposure. BRUSX charges 1.26%/yr vs 0.78%/yr for BRSIX.

Performance

BRUSX vs. BRSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bridgeway Ultra Small Company Fund (BRUSX) and Bridgeway Ultra Small Company Market Fund (BRSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BRUSX achieves a 9.10% return, which is significantly lower than BRSIX's 18.55% return. Over the past 10 years, BRUSX has outperformed BRSIX with an annualized return of 9.53%, while BRSIX has yielded a comparatively lower 8.64% annualized return.

BRUSX

• 1D: -0.14%
• 1M: 0.99%
• YTD: 9.10%
• 6M: 8.76%
• 1Y: 24.58%
• 3Y*: 15.60%
• 5Y*: 2.56%
• 10Y*: 9.53%

BRSIX

• 1D: -0.98%
• 1M: 0.89%
• YTD: 18.55%
• 6M: 17.64%
• 1Y: 55.36%
• 3Y*: 21.16%
• 5Y*: -0.17%
• 10Y*: 8.64%

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

BRUSX vs. BRSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BRUSX Bridgeway Ultra Small Company Fund	9.10%	7.13%	17.57%	18.14%	-10.99%	13.85%	33.43%	9.52%	-15.77%	3.86%
BRSIX Bridgeway Ultra Small Company Market Fund	18.55%	20.09%	14.92%	11.46%	-23.43%	-1.93%	25.50%	15.34%	-17.23%	12.29%

Correlation

The correlation between BRUSX and BRSIX is 0.94, 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	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Jul 31, 1997	0.90

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

Return for Risk

BRUSX vs. BRSIX — Risk / Return Rank

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

BRUSX

BRUSX Risk / Return Rank: 22
BRUSX Sharpe Ratio Rank: 19
BRUSX Sortino Ratio Rank: 19
BRUSX Omega Ratio Rank: 17
BRUSX Calmar Ratio Rank: 31
BRUSX Martin Ratio Rank: 25

BRSIX

BRSIX Risk / Return Rank: 74
BRSIX Sharpe Ratio Rank: 76
BRSIX Sortino Ratio Rank: 64
BRSIX Omega Ratio Rank: 53
BRSIX Calmar Ratio Rank: 93
BRSIX 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.

BRUSX vs. BRSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bridgeway Ultra Small Company Fund (BRUSX) and Bridgeway Ultra Small Company Market Fund (BRSIX). 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.

	BRUSX	BRSIX	Difference
Sharpe ratio: Return per unit of total volatility	1.16	2.34	-1.19
Sortino ratio: Return per unit of downside risk	1.67	3.06	-1.39
Omega ratio: Gain probability vs. loss probability	1.20	1.37	-0.17
Calmar ratio: Return relative to maximum drawdown	1.96	4.91	-2.95
Martin ratio: Return relative to average drawdown	5.48	14.75	-9.27

BRUSX vs. BRSIX - Sharpe Ratio Comparison

The current BRUSX Sharpe Ratio is 1.16, which is lower than the BRSIX Sharpe Ratio of 2.34. The chart below compares the historical Sharpe Ratios of BRUSX and BRSIX, 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

BRUSX vs. BRSIX - Drawdown Comparison

The maximum BRUSX drawdown since its inception was -60.38%, roughly equal to the maximum BRSIX drawdown of -61.79%. Use the drawdown chart below to compare losses from any high point for BRUSX and BRSIX.

Drawdown Indicators

	BRUSX	BRSIX	Difference
Max Drawdown Largest peak-to-trough decline	-60.38%	-61.79%	+1.41%
Max Drawdown (1Y) Largest decline over 1 year	-12.87%	-11.46%	-1.41%
Max Drawdown (3Y) Largest decline over 3 years	-27.73%	-30.80%	+3.07%
Max Drawdown (5Y) Largest decline over 5 years	-38.95%	-53.66%	+14.71%
Max Drawdown (10Y) Largest decline over 10 years	-55.77%	-54.09%	-1.68%
Current Drawdown Current decline from peak	-1.33%	-3.72%	+2.39%
Average Drawdown Average peak-to-trough decline	-13.53%	-15.62%	+2.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.60%	3.81%	+0.79%

Volatility

BRUSX vs. BRSIX - Volatility Comparison

The current volatility for Bridgeway Ultra Small Company Fund (BRUSX) is 6.75%, while Bridgeway Ultra Small Company Market Fund (BRSIX) has a volatility of 8.19%. This indicates that BRUSX experiences smaller price fluctuations and is considered to be less risky than BRSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BRUSX	BRSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.75%	8.19%	-1.44%
Volatility (6M) Calculated over the trailing 6-month period	14.26%	16.09%	-1.83%
Volatility (1Y) Calculated over the trailing 1-year period	21.91%	24.09%	-2.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.31%	24.61%	-1.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.40%	24.20%	-0.80%

BRUSX vs. BRSIX - Expense Ratio Comparison

BRUSX has a 1.26% expense ratio, which is higher than BRSIX's 0.78% expense ratio.

Dividends

BRUSX vs. BRSIX - Dividend Comparison

BRUSX's dividend yield for the trailing twelve months is around 9.68%, more than BRSIX's 0.87% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRSIX Bridgeway Ultra Small Company Market Fund	0.87%	1.03%	0.62%	0.89%	2.12%	1.32%	3.46%	1.30%	16.12%	13.71%	8.25%	12.77%
BRUSX Bridgeway Ultra Small Company Fund	9.68%	10.56%	2.46%	4.97%	18.41%	7.70%	1.53%	1.14%	13.87%	1.99%	1.12%	1.03%

Frequently Asked Questions

Can I hold both BRUSX and BRSIX in my portfolio?

With a correlation of 0.94, BRUSX and BRSIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, BRUSX or BRSIX?

BRSIX has higher volatility (8.19%) compared to BRUSX (6.75%). In terms of maximum drawdown, BRUSX dropped -60.38% vs BRSIX's -61.79%.

Which has better risk-adjusted returns?

BRSIX currently has the higher Sharpe Ratio (2.34 vs 1.16), 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.