WPGTX vs. BPIRX

Last updated Jun 5, 2026

WPGTX (WPG Partners Small/Micro Cap Value Fund) and BPIRX (Boston Partners Long/Short Research Fund) are both mutual funds - WPGTX is a Small Cap Value Equities fund managed by Boston Partners, while BPIRX is a Long-Short fund managed by Boston Partners. Over the past 10 years, WPGTX returned 9.85%/yr vs 6.98%/yr for BPIRX. A 0.76 correlation means they provide meaningful diversification when combined. WPGTX charges 1.10%/yr vs 1.40%/yr for BPIRX.

Performance

WPGTX vs. BPIRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WPG Partners Small/Micro Cap Value Fund (WPGTX) and Boston Partners Long/Short Research Fund (BPIRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WPGTX achieves a 16.99% return, which is significantly higher than BPIRX's 4.27% return. Over the past 10 years, WPGTX has outperformed BPIRX with an annualized return of 9.85%, while BPIRX has yielded a comparatively lower 6.98% annualized return.

WPGTX

• 1D: -0.54%
• 1M: 1.66%
• YTD: 16.99%
• 6M: 16.14%
• 1Y: 31.61%
• 3Y*: 15.03%
• 5Y*: 10.41%
• 10Y*: 9.85%

BPIRX

• 1D: 0.21%
• 1M: 0.90%
• YTD: 4.27%
• 6M: 5.17%
• 1Y: 14.14%
• 3Y*: 13.88%
• 5Y*: 10.10%
• 10Y*: 6.98%

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

WPGTX vs. BPIRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WPGTX WPG Partners Small/Micro Cap Value Fund	16.99%	7.08%	10.53%	14.45%	2.10%	40.04%	-1.31%	23.35%	-21.88%	5.58%
BPIRX Boston Partners Long/Short Research Fund	4.27%	14.90%	13.49%	4.75%	6.48%	23.74%	-8.25%	12.60%	-10.59%	10.10%

Correlation

The correlation between WPGTX and BPIRX is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (10Y) Calculated over the trailing 10-year period	0.75
Correlation (All Time) Calculated using the full available price history since Oct 5, 2010	0.76

The correlation between WPGTX and BPIRX has been stable across timeframes, ranging from 0.75 to 0.78 - a consistent structural relationship.

Return for Risk

WPGTX vs. BPIRX — Risk / Return Rank

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

WPGTX

WPGTX Risk / Return Rank: 51
WPGTX Sharpe Ratio Rank: 47
WPGTX Sortino Ratio Rank: 47
WPGTX Omega Ratio Rank: 45
WPGTX Calmar Ratio Rank: 61
WPGTX Martin Ratio Rank: 54

BPIRX

BPIRX Risk / Return Rank: 36
BPIRX Sharpe Ratio Rank: 36
BPIRX Sortino Ratio Rank: 36
BPIRX Omega Ratio Rank: 35
BPIRX Calmar Ratio Rank: 33
BPIRX Martin Ratio Rank: 40

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.

WPGTX vs. BPIRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WPG Partners Small/Micro Cap Value Fund (WPGTX) and Boston Partners Long/Short Research Fund (BPIRX). 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.

	WPGTX	BPIRX	Difference
Sharpe ratio: Return per unit of total volatility	2.00	1.71	+0.30
Sortino ratio: Return per unit of downside risk	2.87	2.49	+0.38
Omega ratio: Gain probability vs. loss probability	1.36	1.31	+0.05
Calmar ratio: Return relative to maximum drawdown	2.98	2.14	+0.84
Martin ratio: Return relative to average drawdown	10.86	8.47	+2.39
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WPGTX vs. BPIRX - Sharpe Ratio Comparison

The current WPGTX Sharpe Ratio is 2.00, which is comparable to the BPIRX Sharpe Ratio of 1.71. The chart below compares the historical Sharpe Ratios of WPGTX and BPIRX, 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

	WPGTX	BPIRX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.00	1.71	+0.30
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.89	-0.36
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.44	0.60	-0.16
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.71	-0.25

Drawdowns

WPGTX vs. BPIRX - Drawdown Comparison

The maximum WPGTX drawdown since its inception was -60.60%, which is greater than BPIRX's maximum drawdown of -30.59%. Use the drawdown chart below to compare losses from any high point for WPGTX and BPIRX.

Drawdown Indicators

	WPGTX	BPIRX	Difference
Max Drawdown Largest peak-to-trough decline	-60.60%	-30.59%	-30.01%
Max Drawdown (1Y) Largest decline over 1 year	-10.64%	-6.46%	-4.18%
Max Drawdown (3Y) Largest decline over 3 years	-25.90%	-15.42%	-10.48%
Max Drawdown (5Y) Largest decline over 5 years	-25.90%	-15.42%	-10.48%
Max Drawdown (10Y) Largest decline over 10 years	-50.03%	-30.59%	-19.44%
Current Drawdown Current decline from peak	-0.54%	-0.41%	-0.13%
Average Drawdown Average peak-to-trough decline	-13.01%	-3.86%	-9.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.91%	1.63%	+1.28%

Volatility

WPGTX vs. BPIRX - Volatility Comparison

WPG Partners Small/Micro Cap Value Fund (WPGTX) has a higher volatility of 4.19% compared to Boston Partners Long/Short Research Fund (BPIRX) at 2.24%. This indicates that WPGTX's price experiences larger fluctuations and is considered to be riskier than BPIRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WPGTX	BPIRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.19%	2.24%	+1.95%
Volatility (6M) Calculated over the trailing 6-month period	11.00%	6.35%	+4.65%
Volatility (1Y) Calculated over the trailing 1-year period	15.85%	8.09%	+7.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.75%	11.46%	+8.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.45%	11.67%	+10.78%

WPGTX vs. BPIRX - Expense Ratio Comparison

WPGTX has a 1.10% expense ratio, which is lower than BPIRX's 1.40% expense ratio.

Dividends

WPGTX vs. BPIRX - Dividend Comparison

WPGTX's dividend yield for the trailing twelve months is around 8.67%, less than BPIRX's 10.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BPIRX Boston Partners Long/Short Research Fund	10.21%	10.65%	11.38%	11.29%	20.90%	12.51%	0.00%	2.28%	5.50%	0.00%	0.00%	3.88%
WPGTX WPG Partners Small/Micro Cap Value Fund	8.67%	10.15%	6.38%	7.58%	17.82%	1.47%	0.64%	0.44%	8.44%	6.83%	0.42%	3.03%

Frequently Asked Questions

Can I hold both WPGTX and BPIRX in my portfolio?

WPGTX and BPIRX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WPGTX or BPIRX?

WPGTX has higher volatility (4.19%) compared to BPIRX (2.24%). In terms of maximum drawdown, WPGTX dropped -60.60% vs BPIRX's -30.59%.

Which has better risk-adjusted returns?

WPGTX currently has the higher Sharpe Ratio (2.00 vs 1.71), 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.