PXQSX vs. OBSOX

Last updated Jul 11, 2026

PXQSX (Virtus KAR Small-Cap Value Fund) and OBSOX (Oberweis Small-Cap Opportunities Fund) are both Small Cap Growth Equities funds. Over the past 10 years, PXQSX returned 7.75%/yr vs 18.63%/yr for OBSOX. Their correlation of 0.82 suggests significant overlap in exposure. PXQSX charges 0.96%/yr vs 1.25%/yr for OBSOX.

Performance

PXQSX vs. OBSOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Virtus KAR Small-Cap Value Fund (PXQSX) and Oberweis Small-Cap Opportunities Fund (OBSOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PXQSX achieves a 5.65% return, which is significantly lower than OBSOX's 35.81% return. Over the past 10 years, PXQSX has underperformed OBSOX with an annualized return of 7.75%, while OBSOX has yielded a comparatively higher 18.63% annualized return.

PXQSX

• 1D: 0.33%
• 1M: 0.62%
• 6M: -0.41%
• YTD: 5.65%
• 1Y: 0.03%
• 3Y*: 7.41%
• 5Y*: 0.85%
• 10Y*: 7.75%

OBSOX

• 1D: 2.01%
• 1M: -1.30%
• 6M: 30.95%
• YTD: 35.81%
• 1Y: 52.62%
• 3Y*: 22.16%
• 5Y*: 16.32%
• 10Y*: 18.63%

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

PXQSX vs. OBSOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PXQSX Virtus KAR Small-Cap Value Fund	5.65%	-4.50%	9.63%	19.10%	-24.29%	19.50%	28.16%	24.87%	-15.95%	18.90%
OBSOX Oberweis Small-Cap Opportunities Fund	35.81%	14.28%	16.13%	15.81%	-11.17%	43.39%	32.52%	25.06%	-7.05%	25.55%

Correlation

The correlation between PXQSX and OBSOX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.65
Correlation (5Y) Calculated over the trailing 5-year period	0.75
Correlation (10Y) Calculated over the trailing 10-year period	0.78
Correlation (All Time) Calculated using the full available price history since Jun 29, 2006	0.82

Over the past year, the correlation between PXQSX and OBSOX has dropped to 0.45 - well below their long-term average of 0.82, suggesting their price drivers have been diverging.

Return for Risk

PXQSX vs. OBSOX — Risk / Return Rank

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

PXQSX

PXQSX Risk / Return Rank: 3
PXQSX Sharpe Ratio Rank: 3
PXQSX Sortino Ratio Rank: 3
PXQSX Omega Ratio Rank: 3
PXQSX Calmar Ratio Rank: 3
PXQSX Martin Ratio Rank: 3

OBSOX

OBSOX Risk / Return Rank: 75
OBSOX Sharpe Ratio Rank: 71
OBSOX Sortino Ratio Rank: 61
OBSOX Omega Ratio Rank: 57
OBSOX Calmar Ratio Rank: 95
OBSOX Martin Ratio Rank: 94

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.

PXQSX vs. OBSOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Virtus KAR Small-Cap Value Fund (PXQSX) and Oberweis Small-Cap Opportunities Fund (OBSOX). 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.

	PXQSX	OBSOX	Difference
Sharpe ratio: Return per unit of total volatility	-0.02	1.86	-1.88
Sortino ratio: Return per unit of downside risk	0.09	2.44	-2.35
Omega ratio: Gain probability vs. loss probability	1.01	1.31	-0.30
Calmar ratio: Return relative to maximum drawdown	-0.03	4.48	-4.51
Martin ratio: Return relative to average drawdown	-0.06	15.76	-15.82

PXQSX vs. OBSOX - Sharpe Ratio Comparison

The current PXQSX Sharpe Ratio is -0.02, which is lower than the OBSOX Sharpe Ratio of 1.86. The chart below compares the historical Sharpe Ratios of PXQSX and OBSOX, 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

PXQSX vs. OBSOX - Drawdown Comparison

The maximum PXQSX drawdown since its inception was -55.56%, smaller than the maximum OBSOX drawdown of -80.52%. Use the drawdown chart below to compare losses from any high point for PXQSX and OBSOX.

Drawdown Indicators

	PXQSX	OBSOX	Difference
Max Drawdown Largest peak-to-trough decline	-55.56%	-80.52%	+24.96%
Max Drawdown (1Y) Largest decline over 1 year	-13.25%	-11.40%	-1.85%
Max Drawdown (3Y) Largest decline over 3 years	-22.87%	-27.74%	+4.87%
Max Drawdown (5Y) Largest decline over 5 years	-31.49%	-28.65%	-2.84%
Max Drawdown (10Y) Largest decline over 10 years	-37.65%	-42.79%	+5.14%
Current Drawdown Current decline from peak	-9.21%	-4.61%	-4.60%
Average Drawdown Average peak-to-trough decline	-10.29%	-30.45%	+20.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.53%	3.23%	+3.30%

Volatility

PXQSX vs. OBSOX - Volatility Comparison

The current volatility for Virtus KAR Small-Cap Value Fund (PXQSX) is 4.85%, while Oberweis Small-Cap Opportunities Fund (OBSOX) has a volatility of 9.76%. This indicates that PXQSX experiences smaller price fluctuations and is considered to be less risky than OBSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PXQSX	OBSOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.85%	9.76%	-4.91%
Volatility (6M) Calculated over the trailing 6-month period	12.42%	22.59%	-10.17%
Volatility (1Y) Calculated over the trailing 1-year period	16.82%	27.46%	-10.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.25%	25.44%	-5.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.47%	24.89%	-4.42%

PXQSX vs. OBSOX - Expense Ratio Comparison

PXQSX has a 0.96% expense ratio, which is lower than OBSOX's 1.25% expense ratio.

Dividends

PXQSX vs. OBSOX - Dividend Comparison

PXQSX's dividend yield for the trailing twelve months is around 5.50%, while OBSOX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OBSOX Oberweis Small-Cap Opportunities Fund	0.00%	0.00%	0.80%	0.00%	0.17%	21.88%	4.05%	3.04%	28.22%	6.36%	4.24%	11.91%
PXQSX Virtus KAR Small-Cap Value Fund	5.50%	5.81%	4.90%	2.99%	3.37%	1.76%	0.82%	0.80%	2.54%	5.32%	8.89%	7.58%

Frequently Asked Questions

Can I hold both PXQSX and OBSOX in my portfolio?

PXQSX and OBSOX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PXQSX or OBSOX?

OBSOX has higher volatility (9.76%) compared to PXQSX (4.85%). In terms of maximum drawdown, PXQSX dropped -55.56% vs OBSOX's -80.52%.

Which has better risk-adjusted returns?

OBSOX currently has the higher Sharpe Ratio (1.86 vs -0.02), 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.