DWAS vs. OBMCX

Last updated Jun 23, 2026

DWAS (Invesco DWA SmallCap Momentum ETF) and OBMCX (Oberweis Micro Cap Fund) are both funds - DWAS is a Momentum fund tracking the Dorsey Wright SmallCap Technical Leaders Index, while OBMCX is a Small Cap Growth Equities fund managed by Oberweis. Over the past 10 years, DWAS returned 14.09%/yr vs 22.03%/yr for OBMCX. Their correlation of 0.90 suggests significant overlap in exposure. DWAS charges 0.60%/yr vs 1.48%/yr for OBMCX.

Performance

DWAS vs. OBMCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco DWA SmallCap Momentum ETF (DWAS) and Oberweis Micro Cap Fund (OBMCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DWAS achieves a 27.16% return, which is significantly lower than OBMCX's 50.06% return. Over the past 10 years, DWAS has underperformed OBMCX with an annualized return of 14.09%, while OBMCX has yielded a comparatively higher 22.03% annualized return.

DWAS

• 1D: 1.73%
• 1M: 8.34%
• YTD: 27.16%
• 6M: 23.04%
• 1Y: 50.14%
• 3Y*: 18.33%
• 5Y*: 7.48%
• 10Y*: 14.09%

OBMCX

• 1D: 2.68%
• 1M: 6.77%
• YTD: 50.06%
• 6M: 45.35%
• 1Y: 81.20%
• 3Y*: 29.33%
• 5Y*: 20.91%
• 10Y*: 22.03%

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

DWAS vs. OBMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DWAS Invesco DWA SmallCap Momentum ETF	27.16%	6.09%	9.81%	16.88%	-18.51%	19.75%	32.32%	31.39%	-10.68%	20.84%
OBMCX Oberweis Micro Cap Fund	50.06%	14.70%	22.82%	18.87%	-10.57%	53.20%	29.91%	21.94%	-12.04%	27.90%

Correlation

The correlation between DWAS and OBMCX is 0.82, 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	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Jul 19, 2012	0.90

The correlation between DWAS and OBMCX has been stable across timeframes, ranging from 0.82 to 0.90 - a consistent structural relationship.

Return for Risk

DWAS vs. OBMCX — Risk / Return Rank

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

DWAS

DWAS Risk / Return Rank: 71
DWAS Sharpe Ratio Rank: 67
DWAS Sortino Ratio Rank: 61
DWAS Omega Ratio Rank: 57
DWAS Calmar Ratio Rank: 89
DWAS Martin Ratio Rank: 83

OBMCX

OBMCX Risk / Return Rank: 91
OBMCX Sharpe Ratio Rank: 96
OBMCX Sortino Ratio Rank: 85
OBMCX Omega Ratio Rank: 82
OBMCX Calmar Ratio Rank: 97
OBMCX Martin Ratio Rank: 97

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.

DWAS vs. OBMCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco DWA SmallCap Momentum ETF (DWAS) and Oberweis Micro Cap Fund (OBMCX). 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.

	DWAS	OBMCX	Difference
Sharpe ratio: Return per unit of total volatility	2.11	3.13	-1.02
Sortino ratio: Return per unit of downside risk	2.78	3.74	-0.96
Omega ratio: Gain probability vs. loss probability	1.34	1.49	-0.15
Calmar ratio: Return relative to maximum drawdown	5.03	6.55	-1.52
Martin ratio: Return relative to average drawdown	16.22	25.93	-9.71

DWAS vs. OBMCX - Sharpe Ratio Comparison

The current DWAS Sharpe Ratio is 2.11, which is lower than the OBMCX Sharpe Ratio of 3.13. The chart below compares the historical Sharpe Ratios of DWAS and OBMCX, 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

DWAS vs. OBMCX - Drawdown Comparison

The maximum DWAS drawdown since its inception was -46.16%, smaller than the maximum OBMCX drawdown of -68.24%. Use the drawdown chart below to compare losses from any high point for DWAS and OBMCX.

Drawdown Indicators

	DWAS	OBMCX	Difference
Max Drawdown Largest peak-to-trough decline	-46.16%	-68.24%	+22.08%
Max Drawdown (1Y) Largest decline over 1 year	-10.02%	-12.45%	+2.43%
Max Drawdown (3Y) Largest decline over 3 years	-33.83%	-28.11%	-5.72%
Max Drawdown (5Y) Largest decline over 5 years	-33.83%	-28.11%	-5.72%
Max Drawdown (10Y) Largest decline over 10 years	-46.16%	-50.04%	+3.88%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-10.27%	-16.39%	+6.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.10%	3.14%	-0.04%

Volatility

DWAS vs. OBMCX - Volatility Comparison

The current volatility for Invesco DWA SmallCap Momentum ETF (DWAS) is 8.61%, while Oberweis Micro Cap Fund (OBMCX) has a volatility of 10.07%. This indicates that DWAS experiences smaller price fluctuations and is considered to be less risky than OBMCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DWAS	OBMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.61%	10.07%	-1.46%
Volatility (6M) Calculated over the trailing 6-month period	18.05%	20.24%	-2.19%
Volatility (1Y) Calculated over the trailing 1-year period	23.95%	26.06%	-2.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.85%	26.42%	-0.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.71%	26.00%	+0.71%

DWAS vs. OBMCX - Expense Ratio Comparison

DWAS has a 0.60% expense ratio, which is lower than OBMCX's 1.48% expense ratio.

Dividends

DWAS vs. OBMCX - Dividend Comparison

DWAS's dividend yield for the trailing twelve months is around 0.01%, less than OBMCX's 0.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DWAS Invesco DWA SmallCap Momentum ETF	0.00%	0.07%	0.79%	1.42%	0.81%	0.16%	0.21%	0.13%	0.04%	0.20%	0.52%	0.19%
OBMCX Oberweis Micro Cap Fund	0.94%	1.41%	2.53%	0.00%	1.37%	24.35%	0.00%	0.00%	19.67%	11.76%	0.05%	3.07%

Frequently Asked Questions

Can I hold both DWAS and OBMCX in my portfolio?

DWAS and OBMCX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DWAS or OBMCX?

OBMCX has higher volatility (10.07%) compared to DWAS (8.61%). In terms of maximum drawdown, DWAS dropped -46.16% vs OBMCX's -68.24%.

Which has better risk-adjusted returns?

OBMCX currently has the higher Sharpe Ratio (3.13 vs 2.11), 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.