NDVIX vs. BRSIX

Last updated Apr 1, 2026

Compare and contrast key facts about MFS New Discovery Value Fund (NDVIX) and Bridgeway Ultra Small Company Market Fund (BRSIX).

NDVIX is managed by MFS. It was launched on May 26, 2011. BRSIX is managed by Bridgeway. It was launched on Jul 31, 1997.

Performance

NDVIX vs. BRSIX - Performance Comparison

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

NDVIX vs. BRSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NDVIX MFS New Discovery Value Fund	-1.01%	2.38%	9.34%	11.20%	-10.79%	33.58%	3.65%	33.65%	-11.13%	14.54%
BRSIX Bridgeway Ultra Small Company Market Fund	-3.39%	20.09%	14.92%	11.46%	-23.43%	-1.93%	25.50%	15.34%	-17.23%	12.29%

Returns By Period

In the year-to-date period, NDVIX achieves a -1.01% return, which is significantly higher than BRSIX's -3.39% return. Over the past 10 years, NDVIX has outperformed BRSIX with an annualized return of 9.67%, while BRSIX has yielded a comparatively lower 6.58% annualized return.

NDVIX

• 1D: -1.01%
• 1M: -8.22%
• YTD: -1.01%
• 6M: -0.89%
• 1Y: 7.23%
• 3Y*: 6.96%
• 5Y*: 4.64%
• 10Y*: 9.67%

BRSIX

• 1D: -1.13%
• 1M: -7.88%
• YTD: -3.39%
• 6M: 4.17%
• 1Y: 40.23%
• 3Y*: 14.23%
• 5Y*: -3.16%
• 10Y*: 6.58%

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

NDVIX vs. BRSIX - Expense Ratio Comparison

NDVIX has a 0.93% expense ratio, which is higher than BRSIX's 0.78% expense ratio.

NDVIX

MFS New Discovery Value Fund

BRSIX

Bridgeway Ultra Small Company Market Fund

Return for Risk

NDVIX vs. BRSIX — Risk / Return Rank

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

NDVIX

NDVIX Risk / Return Rank: 14
NDVIX Sharpe Ratio Rank: 13
NDVIX Sortino Ratio Rank: 14
NDVIX Omega Ratio Rank: 13
NDVIX Calmar Ratio Rank: 14
NDVIX Martin Ratio Rank: 15

BRSIX

BRSIX Risk / Return Rank: 80
BRSIX Sharpe Ratio Rank: 80
BRSIX Sortino Ratio Rank: 82
BRSIX Omega Ratio Rank: 67
BRSIX Calmar Ratio Rank: 89
BRSIX Martin Ratio Rank: 82

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.

NDVIX vs. BRSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS New Discovery Value Fund (NDVIX) 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.

	NDVIX	BRSIX	Difference
Sharpe ratio Return per unit of total volatility	0.35	1.45	-1.10
Sortino ratio Return per unit of downside risk	0.64	2.07	-1.43
Omega ratio Gain probability vs. loss probability	1.09	1.25	-0.16
Calmar ratio Return relative to maximum drawdown	0.39	2.41	-2.03
Martin ratio Return relative to average drawdown	1.40	8.20	-6.81
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NDVIX vs. BRSIX - Sharpe Ratio Comparison

The current NDVIX Sharpe Ratio is 0.35, which is lower than the BRSIX Sharpe Ratio of 1.45. The chart below compares the historical Sharpe Ratios of NDVIX and BRSIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	NDVIX	BRSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.35	1.45	-1.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.23	-0.13	+0.36
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.28	+0.17
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.41	+0.06

Correlation

The correlation between NDVIX and BRSIX is 0.83, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

NDVIX vs. BRSIX - Dividend Comparison

NDVIX's dividend yield for the trailing twelve months is around 10.87%, more than BRSIX's 1.06% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NDVIX MFS New Discovery Value Fund	10.87%	10.76%	6.57%	6.24%	8.27%	9.36%	1.93%	4.80%	8.09%	5.14%	4.40%	2.70%
BRSIX Bridgeway Ultra Small Company Market Fund	1.06%	1.03%	0.62%	0.89%	2.12%	1.32%	3.46%	1.30%	16.12%	13.71%	8.25%	12.77%

Drawdowns

NDVIX vs. BRSIX - Drawdown Comparison

The maximum NDVIX drawdown since its inception was -44.03%, smaller than the maximum BRSIX drawdown of -61.79%. Use the drawdown chart below to compare losses from any high point for NDVIX and BRSIX.

Drawdown Indicators

	NDVIX	BRSIX	Difference
Max Drawdown Largest peak-to-trough decline	-44.03%	-61.79%	+17.76%
Max Drawdown (1Y) Largest decline over 1 year	-15.23%	-13.57%	-1.66%
Max Drawdown (5Y) Largest decline over 5 years	-25.59%	-53.66%	+28.07%
Max Drawdown (10Y) Largest decline over 10 years	-44.03%	-54.09%	+10.06%
Current Drawdown Current decline from peak	-10.44%	-21.53%	+11.09%
Average Drawdown Average peak-to-trough decline	-6.18%	-15.68%	+9.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.21%	4.20%	+0.01%

Volatility

NDVIX vs. BRSIX - Volatility Comparison

The current volatility for MFS New Discovery Value Fund (NDVIX) is 5.66%, while Bridgeway Ultra Small Company Market Fund (BRSIX) has a volatility of 7.06%. This indicates that NDVIX 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

	NDVIX	BRSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.66%	7.06%	-1.40%
Volatility (6M) Calculated over the trailing 6-month period	11.93%	17.25%	-5.32%
Volatility (1Y) Calculated over the trailing 1-year period	21.39%	26.41%	-5.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.06%	24.41%	-4.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.79%	24.00%	-2.21%