WWSIX vs. SLPIX

Last updated Jun 25, 2026

WWSIX (Keeley Small Cap Fund Class Institutional) and SLPIX (ProFunds Small Cap Fund) are both Small Cap Blend Equities funds. Over the past 10 years, WWSIX returned 15.45%/yr vs 9.06%/yr for SLPIX. Their correlation of 0.95 suggests significant overlap in exposure. WWSIX charges 1.00%/yr vs 1.78%/yr for SLPIX.

Performance

WWSIX vs. SLPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Keeley Small Cap Fund Class Institutional (WWSIX) and ProFunds Small Cap Fund (SLPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WWSIX achieves a 31.53% return, which is significantly higher than SLPIX's 19.54% return. Over the past 10 years, WWSIX has outperformed SLPIX with an annualized return of 15.45%, while SLPIX has yielded a comparatively lower 9.06% annualized return.

WWSIX

• 1D: -1.06%
• 1M: 5.29%
• YTD: 31.53%
• 6M: 28.64%
• 1Y: 63.34%
• 3Y*: 25.78%
• 5Y*: 12.64%
• 10Y*: 15.45%

SLPIX

• 1D: -0.95%
• 1M: 3.58%
• YTD: 19.54%
• 6M: 16.46%
• 1Y: 36.58%
• 3Y*: 16.40%
• 5Y*: 3.88%
• 10Y*: 9.06%

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

WWSIX vs. SLPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WWSIX Keeley Small Cap Fund Class Institutional	31.53%	17.55%	15.79%	12.87%	-12.30%	30.04%	11.27%	28.74%	-13.49%	16.07%
SLPIX ProFunds Small Cap Fund	19.54%	8.83%	9.14%	14.58%	-22.26%	12.45%	16.22%	23.05%	-12.98%	12.05%

Correlation

The correlation between WWSIX and SLPIX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.93
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 Jan 11, 2008	0.95

The correlation between WWSIX and SLPIX has been stable across timeframes, ranging from 0.90 to 0.95 - a consistent structural relationship.

Return for Risk

WWSIX vs. SLPIX — Risk / Return Rank

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

WWSIX

WWSIX Risk / Return Rank: 94
WWSIX Sharpe Ratio Rank: 97
WWSIX Sortino Ratio Rank: 92
WWSIX Omega Ratio Rank: 87
WWSIX Calmar Ratio Rank: 97
WWSIX Martin Ratio Rank: 97

SLPIX

SLPIX Risk / Return Rank: 64
SLPIX Sharpe Ratio Rank: 61
SLPIX Sortino Ratio Rank: 59
SLPIX Omega Ratio Rank: 48
SLPIX Calmar Ratio Rank: 83
SLPIX Martin Ratio Rank: 72

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.

WWSIX vs. SLPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Keeley Small Cap Fund Class Institutional (WWSIX) and ProFunds Small Cap Fund (SLPIX). 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.

	WWSIX	SLPIX	Difference
Sharpe ratio: Return per unit of total volatility	3.10	1.96	+1.14
Sortino ratio: Return per unit of downside risk	4.07	2.72	+1.35
Omega ratio: Gain probability vs. loss probability	1.53	1.32	+0.20
Calmar ratio: Return relative to maximum drawdown	6.44	3.47	+2.97
Martin ratio: Return relative to average drawdown	23.56	11.99	+11.57

WWSIX vs. SLPIX - Sharpe Ratio Comparison

The current WWSIX Sharpe Ratio is 3.10, which is higher than the SLPIX Sharpe Ratio of 1.96. The chart below compares the historical Sharpe Ratios of WWSIX and SLPIX, 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

WWSIX vs. SLPIX - Drawdown Comparison

The maximum WWSIX drawdown since its inception was -59.71%, roughly equal to the maximum SLPIX drawdown of -59.60%. Use the drawdown chart below to compare losses from any high point for WWSIX and SLPIX.

Drawdown Indicators

	WWSIX	SLPIX	Difference
Max Drawdown Largest peak-to-trough decline	-59.71%	-59.60%	-0.11%
Max Drawdown (1Y) Largest decline over 1 year	-10.17%	-11.12%	+0.95%
Max Drawdown (3Y) Largest decline over 3 years	-26.17%	-28.17%	+2.00%
Max Drawdown (5Y) Largest decline over 5 years	-26.17%	-33.95%	+7.78%
Max Drawdown (10Y) Largest decline over 10 years	-45.11%	-43.26%	-1.85%
Current Drawdown Current decline from peak	-1.06%	-0.95%	-0.11%
Average Drawdown Average peak-to-trough decline	-8.93%	-11.71%	+2.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.77%	3.21%	-0.44%

Volatility

WWSIX vs. SLPIX - Volatility Comparison

Keeley Small Cap Fund Class Institutional (WWSIX) and ProFunds Small Cap Fund (SLPIX) have volatilities of 6.50% and 6.48%, 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

	WWSIX	SLPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.50%	6.48%	+0.02%
Volatility (6M) Calculated over the trailing 6-month period	14.56%	14.31%	+0.25%
Volatility (1Y) Calculated over the trailing 1-year period	21.13%	19.70%	+1.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.72%	22.81%	-1.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.71%	23.19%	+0.52%

WWSIX vs. SLPIX - Expense Ratio Comparison

WWSIX has a 1.00% expense ratio, which is lower than SLPIX's 1.78% expense ratio.

Dividends

WWSIX vs. SLPIX - Dividend Comparison

WWSIX's dividend yield for the trailing twelve months is around 5.87%, more than SLPIX's 0.68% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SLPIX ProFunds Small Cap Fund	0.68%	0.81%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
WWSIX Keeley Small Cap Fund Class Institutional	5.87%	7.72%	28.12%	3.00%	1.85%	5.58%	0.20%	4.70%	14.34%	8.83%	9.05%	18.47%

Frequently Asked Questions

Can I hold both WWSIX and SLPIX in my portfolio?

WWSIX and SLPIX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WWSIX or SLPIX?

WWSIX has higher volatility (6.50%) compared to SLPIX (6.48%). In terms of maximum drawdown, WWSIX dropped -59.71% vs SLPIX's -59.60%.

Which has better risk-adjusted returns?

WWSIX currently has the higher Sharpe Ratio (3.10 vs 1.96), 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.