BPLEX vs. BPSIX

Last updated Aug 1, 2026

BPLEX (Boston Partners Long/Short Equity Fund) and BPSIX (Boston Partners Small Cap Value Fund Class I) are both mutual funds - BPLEX is a Long-Short fund managed by Boston Partners, while BPSIX is a Small Cap Value Equities fund managed by Boston Partners. Over the past 10 years, BPLEX returned 14.50%/yr vs 9.82%/yr for BPSIX. Their 0.54 correlation means they have sometimes moved together and sometimes differently. BPLEX charges 2.21%/yr vs 0.99%/yr for BPSIX.

Performance

BPLEX vs. BPSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Boston Partners Long/Short Equity Fund (BPLEX) and Boston Partners Small Cap Value Fund Class I (BPSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BPLEX achieves a 21.25% return, which is significantly higher than BPSIX's 17.34% return. Over the past 10 years, BPLEX has outperformed BPSIX with an annualized return of 14.50%, while BPSIX has yielded a comparatively lower 9.82% annualized return.

BPLEX

• 1D: 0.08%
• 1M: 3.99%
• 6M: 19.55%
• YTD: 21.25%
• 1Y: 38.01%
• 3Y*: 37.96%
• 5Y*: 27.08%
• 10Y*: 14.50%
• ALL TIME*: 11.81%

BPSIX

• 1D: 0.16%
• 1M: 1.36%
• 6M: 12.41%
• YTD: 17.34%
• 1Y: 26.51%
• 3Y*: 14.67%
• 5Y*: 8.84%
• 10Y*: 9.82%
• ALL TIME*: 10.60%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BPLEX Boston Partners Long/Short Equity Fund	$0.00	$0.00	$0.00
BPSIX Boston Partners Small Cap Value Fund Class I	$0.00	$0.00	$0.00

BPLEX vs. BPSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BPLEX Boston Partners Long/Short Equity Fund	21.25%	27.87%	56.97%	14.93%	6.95%	31.73%	-5.82%	8.97%	-15.70%	2.54%
BPSIX Boston Partners Small Cap Value Fund Class I	17.34%	7.45%	13.95%	16.98%	-11.48%	25.67%	1.60%	28.06%	-16.42%	9.72%

Correlation

The correlation between BPLEX and BPSIX is 0.72, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.72
Correlation (3Y) Balances recent behavior with more history.	0.77
Correlation (5Y) Shows whether the relationship held over a longer period.	0.78
Correlation (10Y) Provides a long-term view across more market conditions.	0.77
Correlation (All Time) Calculated using the full available price history since Nov 16, 1998	0.54

The correlation between BPLEX and BPSIX shifts across timeframes, from 0.54 (all time) to 0.78 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

BPLEX vs. BPSIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BPLEX

BPLEX Risk / Return Rank: 98
BPLEX Sharpe Ratio Rank: 99
BPLEX Sortino Ratio Rank: 98
BPLEX Omega Ratio Rank: 96
BPLEX Calmar Ratio Rank: 98
BPLEX Martin Ratio Rank: 98

BPSIX

BPSIX Risk / Return Rank: 61
BPSIX Sharpe Ratio Rank: 61
BPSIX Sortino Ratio Rank: 67
BPSIX Omega Ratio Rank: 56
BPSIX Calmar Ratio Rank: 69
BPSIX Martin Ratio Rank: 50

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BPLEX vs. BPSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Boston Partners Long/Short Equity Fund (BPLEX) and Boston Partners Small Cap Value Fund Class I (BPSIX). 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.

	BPLEX	BPSIX	Difference
Sharpe ratio: Return per unit of total volatility	3.42	1.50	+1.93
Sortino ratio: Return per unit of downside risk	5.21	2.32	+2.89
Omega ratio: Gain probability vs. loss probability	1.62	1.27	+0.36
Calmar ratio: Return relative to maximum drawdown	6.96	2.27	+4.69
Martin ratio: Return relative to average drawdown	25.32	6.93	+18.39

BPLEX vs. BPSIX - Sharpe Ratio Comparison

The current BPLEX Sharpe Ratio is 3.42, which is higher than the BPSIX Sharpe Ratio of 1.50. The chart below compares the historical Sharpe Ratios of BPLEX and BPSIX, 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

BPLEX vs. BPSIX - Drawdown Comparison

The maximum BPLEX drawdown since its inception was -43.47%, smaller than the maximum BPSIX drawdown of -62.51%. Use the drawdown chart below to compare losses from any high point for BPLEX and BPSIX.

Drawdown Indicators

	BPLEX	BPSIX	Difference
Max Drawdown Largest peak-to-trough decline	-43.47%	-62.51%	+19.04%
Max Drawdown (1Y) Largest decline over 1 year	-5.23%	-10.39%	+5.16%
Max Drawdown (3Y) Largest decline over 3 years	-28.78%	-21.62%	-7.16%
Max Drawdown (5Y) Largest decline over 5 years	-28.78%	-22.01%	-6.77%
Max Drawdown (10Y) Largest decline over 10 years	-37.65%	-47.79%	+10.14%
Current Drawdown Current decline from peak	-0.31%	-0.59%	+0.28%
Average Drawdown Average peak-to-trough decline	-6.58%	-9.04%	+2.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.44%	3.40%	-1.96%

Volatility

BPLEX vs. BPSIX - Volatility Comparison

The current volatility for Boston Partners Long/Short Equity Fund (BPLEX) is 2.78%, while Boston Partners Small Cap Value Fund Class I (BPSIX) has a volatility of 3.36%. This indicates that BPLEX experiences smaller price fluctuations and is considered to be less risky than BPSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BPLEX	BPSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.78%	3.36%	-0.58%
Volatility (6M) Calculated over the trailing 6-month period	8.40%	10.63%	-2.23%
Volatility (1Y) Calculated over the trailing 1-year period	10.65%	15.80%	-5.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	37.85%	19.56%	+18.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.24%	22.05%	+7.19%

BPLEX vs. BPSIX - Expense Ratio Comparison

BPLEX has a 2.21% expense ratio, which is higher than BPSIX's 0.99% expense ratio.

Dividends

BPLEX vs. BPSIX - Dividend Comparison

BPLEX's dividend yield for the trailing twelve months is around 9.03%, more than BPSIX's 6.44% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BPLEX Boston Partners Long/Short Equity Fund	9.03%	10.94%	58.72%	28.35%	15.19%	5.11%	44.84%	11.33%	9.69%	0.83%	0.00%	9.91%
BPSIX Boston Partners Small Cap Value Fund Class I	6.44%	7.56%	14.43%	12.77%	7.64%	7.03%	0.54%	2.42%	6.95%	4.50%	2.22%	5.29%

Frequently Asked Questions

Can I hold both BPLEX and BPSIX in my portfolio?

BPLEX and BPSIX have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BPLEX or BPSIX?

BPSIX has higher volatility (3.36%) compared to BPLEX (2.78%). In terms of maximum drawdown, BPLEX dropped -43.47% vs BPSIX's -62.51%.

Which has better risk-adjusted returns?

BPLEX currently has the higher Sharpe Ratio (3.42 vs 1.50), 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.