BPSCX vs. VSIAX

Last updated Jun 4, 2026

BPSCX (Boston Partners Small Cap Value Fund II) and VSIAX (Vanguard Small-Cap Value Index Fund Admiral Shares) are both Small Cap Value Equities funds. Over the past 10 years, BPSCX returned 9.51%/yr vs 10.56%/yr for VSIAX. With a 0.96 correlation, they move nearly in lockstep. BPSCX charges 1.24%/yr vs 0.07%/yr for VSIAX.

Performance

BPSCX vs. VSIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Boston Partners Small Cap Value Fund II (BPSCX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BPSCX achieves a 11.21% return, which is significantly lower than VSIAX's 12.06% return. Over the past 10 years, BPSCX has underperformed VSIAX with an annualized return of 9.51%, while VSIAX has yielded a comparatively higher 10.56% annualized return.

BPSCX

• 1D: 1.02%
• 1M: 2.49%
• YTD: 11.21%
• 6M: 12.00%
• 1Y: 21.93%
• 3Y*: 16.31%
• 5Y*: 6.63%
• 10Y*: 9.51%

VSIAX

• 1D: 0.86%
• 1M: 2.83%
• YTD: 12.06%
• 6M: 12.39%
• 1Y: 26.25%
• 3Y*: 16.60%
• 5Y*: 8.06%
• 10Y*: 10.56%

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

BPSCX vs. VSIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BPSCX Boston Partners Small Cap Value Fund II	11.21%	7.15%	13.65%	16.96%	-11.69%	25.42%	1.30%	27.75%	-16.64%	9.44%
VSIAX Vanguard Small-Cap Value Index Fund Admiral Shares	12.06%	9.09%	11.34%	17.06%	-9.31%	28.10%	5.80%	22.76%	-12.24%	11.80%

Correlation

The correlation between BPSCX and VSIAX is 0.91, 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	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Sep 28, 2011	0.96

The correlation between BPSCX and VSIAX has been stable across timeframes, ranging from 0.91 to 0.96 - a consistent structural relationship.

Return for Risk

BPSCX vs. VSIAX — Risk / Return Rank

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

BPSCX

BPSCX Risk / Return Rank: 29
BPSCX Sharpe Ratio Rank: 27
BPSCX Sortino Ratio Rank: 29
BPSCX Omega Ratio Rank: 25
BPSCX Calmar Ratio Rank: 35
BPSCX Martin Ratio Rank: 28

VSIAX

VSIAX Risk / Return Rank: 48
VSIAX Sharpe Ratio Rank: 40
VSIAX Sortino Ratio Rank: 41
VSIAX Omega Ratio Rank: 36
VSIAX Calmar Ratio Rank: 67
VSIAX Martin Ratio Rank: 56

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.

BPSCX vs. VSIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Boston Partners Small Cap Value Fund II (BPSCX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX). 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.

	BPSCX	VSIAX	Difference
Sharpe ratio: Return per unit of total volatility	1.47	1.84	-0.37
Sortino ratio: Return per unit of downside risk	2.24	2.70	-0.46
Omega ratio: Gain probability vs. loss probability	1.26	1.32	-0.06
Calmar ratio: Return relative to maximum drawdown	2.23	3.16	-0.92
Martin ratio: Return relative to average drawdown	6.73	11.18	-4.45
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BPSCX vs. VSIAX - Sharpe Ratio Comparison

The current BPSCX Sharpe Ratio is 1.47, which is comparable to the VSIAX Sharpe Ratio of 1.84. The chart below compares the historical Sharpe Ratios of BPSCX and VSIAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	BPSCX	VSIAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.47	1.84	-0.37
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.32	0.41	-0.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.42	0.47	-0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.59	-0.12

Drawdowns

BPSCX vs. VSIAX - Drawdown Comparison

The maximum BPSCX drawdown since its inception was -62.69%, which is greater than VSIAX's maximum drawdown of -45.39%. Use the drawdown chart below to compare losses from any high point for BPSCX and VSIAX.

Drawdown Indicators

	BPSCX	VSIAX	Difference
Max Drawdown Largest peak-to-trough decline	-62.69%	-45.39%	-17.30%
Max Drawdown (1Y) Largest decline over 1 year	-10.45%	-8.87%	-1.58%
Max Drawdown (3Y) Largest decline over 3 years	-21.70%	-24.09%	+2.39%
Max Drawdown (5Y) Largest decline over 5 years	-22.19%	-24.09%	+1.90%
Max Drawdown (10Y) Largest decline over 10 years	-47.80%	-45.39%	-2.41%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-9.30%	-5.50%	-3.80%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.46%	2.50%	+0.96%

Volatility

BPSCX vs. VSIAX - Volatility Comparison

Boston Partners Small Cap Value Fund II (BPSCX) and Vanguard Small-Cap Value Index Fund Admiral Shares (VSIAX) have volatilities of 3.98% and 4.09%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BPSCX	VSIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.98%	4.09%	-0.11%
Volatility (6M) Calculated over the trailing 6-month period	10.75%	10.43%	+0.32%
Volatility (1Y) Calculated over the trailing 1-year period	15.86%	15.19%	+0.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.96%	19.77%	+1.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.68%	22.46%	+0.22%

BPSCX vs. VSIAX - Expense Ratio Comparison

BPSCX has a 1.24% expense ratio, which is higher than VSIAX's 0.07% expense ratio.

Dividends

BPSCX vs. VSIAX - Dividend Comparison

BPSCX's dividend yield for the trailing twelve months is around 7.26%, more than VSIAX's 1.75% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BPSCX Boston Partners Small Cap Value Fund II	7.26%	8.07%	15.19%	13.27%	7.76%	7.12%	0.32%	2.26%	6.95%	4.44%	2.09%	5.24%
VSIAX Vanguard Small-Cap Value Index Fund Admiral Shares	1.75%	1.95%	1.98%	2.10%	2.03%	1.75%	1.68%	2.06%	2.35%	1.79%	1.77%	1.99%

Frequently Asked Questions

Can I hold both BPSCX and VSIAX in my portfolio?

With a correlation of 0.91, BPSCX and VSIAX 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, BPSCX or VSIAX?

VSIAX has higher volatility (4.09%) compared to BPSCX (3.98%). In terms of maximum drawdown, BPSCX dropped -62.69% vs VSIAX's -45.39%.

Which has better risk-adjusted returns?

VSIAX currently has the higher Sharpe Ratio (1.84 vs 1.47), 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.