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Performance
Performance Chart
The chart shows the growth of an initial investment of $10,000 in Oberweis Micro Cap Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.
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Returns By Period
Oberweis Micro Cap Fund (OBMCX) has returned 8.96% so far this year and 43.65% over the past 12 months. Looking at the last ten years, OBMCX has achieved an annualized return of 18.72%, outperforming the S&P 500 Index benchmark, which averaged 12.16% per year.
Oberweis Micro Cap Fund
- 1D
- -3.56%
- 1M
- -5.54%
- YTD
- 8.96%
- 6M
- 7.64%
- 1Y
- 43.65%
- 3Y*
- 18.71%
- 5Y*
- 14.63%
- 10Y*
- 18.72%
Benchmark (S&P 500 Index)
- 1D
- 2.91%
- 1M
- -5.09%
- YTD
- -4.63%
- 6M
- -2.39%
- 1Y
- 16.33%
- 3Y*
- 16.69%
- 5Y*
- 10.18%
- 10Y*
- 12.16%
Monthly Returns
Based on dividend-adjusted daily data since Jun 3, 1996, OBMCX's average daily return is +0.05%, while the average monthly return is +1.11%. At this rate, your investment would double in approximately 5.2 years.
Historically, 61% of months were positive and 39% were negative. The best month was Feb 2000 with a return of +23.8%, while the worst month was Aug 1998 at -25.4%. The longest winning streak lasted 15 consecutive months, and the longest losing streak was 5 months.
On a daily basis, OBMCX closed higher 54% of trading days. The best single day was Oct 13, 2008 with a return of +11.6%, while the worst single day was Nov 10, 2000 at -15.4%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 5.71% | 9.13% | -5.54% | 8.96% | |||||||||
| 2025 | 1.73% | -7.44% | -7.61% | -0.33% | 6.40% | 8.78% | 3.69% | 8.23% | 3.09% | 0.57% | -1.37% | -0.41% | 14.70% |
| 2024 | -3.88% | 6.94% | 0.72% | -5.75% | 10.74% | 1.89% | 4.54% | 1.71% | 1.73% | -2.23% | 12.74% | -6.44% | 22.82% |
| 2023 | 11.69% | 0.48% | -2.82% | -6.58% | 4.44% | 11.40% | 4.27% | -5.24% | -7.10% | -10.75% | 8.88% | 12.40% | 18.87% |
| 2022 | -12.57% | 4.49% | 0.18% | -8.71% | 2.94% | -9.20% | 14.67% | -1.71% | -9.15% | 14.99% | 4.18% | -6.65% | -10.57% |
| 2021 | 9.11% | 13.76% | 1.74% | 4.05% | 1.78% | 4.03% | -2.35% | 2.83% | -3.96% | 6.12% | 2.00% | 5.47% | 53.20% |
Benchmark Metrics
Oberweis Micro Cap Fund has an annualized alpha of 3.69%, beta of 1.02, and R² of 0.59 versus S&P 500 Index. Calculated based on daily prices since June 04, 1996.
- This fund captured 137.21% of S&P 500 Index gains and 120.45% of its losses — amplifying both gains and losses, but participating more in upside than downside.
- This fund generated an annualized alpha of 3.69% versus S&P 500 Index — delivering returns beyond what market exposure alone would predict.
- With beta of 1.02 and R² of 0.59, this fund moves broadly in line with S&P 500 Index — much of its variation is explained by market exposure rather than independent behavior.
- Alpha
- 3.69%
- Beta
- 1.02
- R²
- 0.59
- Upside Capture
- 137.21%
- Downside Capture
- 120.45%
Expense Ratio
OBMCX has a high expense ratio of 1.48%, indicating above-average management fees.
Return for Risk
Risk / Return Rank
OBMCX ranks 85 for risk / return — in the top 85% of mutual funds on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Oberweis Micro Cap Fund (OBMCX) and compare them to a chosen benchmark (S&P 500 Index).
| OBMCX | Benchmark | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.57 | 0.90 | +0.68 |
Sortino ratioReturn per unit of downside risk | 2.15 | 1.39 | +0.76 |
Omega ratioGain probability vs. loss probability | 1.29 | 1.21 | +0.08 |
Calmar ratioReturn relative to maximum drawdown | 3.08 | 1.40 | +1.68 |
Martin ratioReturn relative to average drawdown | 11.08 | 6.61 | +4.48 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Explore OBMCX risk-adjusted metrics in detail
Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.
Dividends
Dividend History
Oberweis Micro Cap Fund provided a 1.29% dividend yield over the last twelve months, with an annual payout of $0.72 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $0.72 | $0.72 | $1.14 | $0.00 | $0.44 | $8.74 | $0.00 | $0.00 | $3.61 | $2.95 | $0.01 | $0.54 |
Dividend yield | 1.29% | 1.41% | 2.53% | 0.00% | 1.37% | 24.35% | 0.00% | 0.00% | 19.67% | 11.76% | 0.05% | 3.07% |
Monthly Dividends
The table displays the monthly dividend distributions for Oberweis Micro Cap Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $0.00 | $0.00 | |||||||||
| 2025 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.72 | $0.72 |
| 2024 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $1.14 | $1.14 |
| 2023 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| 2022 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.44 | $0.44 |
| 2021 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $8.74 | $8.74 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Oberweis Micro Cap Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Oberweis Micro Cap Fund was 68.24%, occurring on Mar 9, 2009. Recovery took 1110 trading sessions.
The current Oberweis Micro Cap Fund drawdown is 8.84%.
Depth | Start | To Bottom | Bottom | To Recover | End | Total |
|---|---|---|---|---|---|---|
| -68.24% | Oct 10, 2007 | 355 | Mar 9, 2009 | 1110 | Aug 5, 2013 | 1465 |
| -50.69% | Oct 14, 1997 | 249 | Oct 8, 1998 | 294 | Dec 8, 1999 | 543 |
| -50.04% | Sep 5, 2018 | 386 | Mar 18, 2020 | 173 | Nov 20, 2020 | 559 |
| -47.46% | Mar 28, 2000 | 636 | Oct 9, 2002 | 183 | Jul 2, 2003 | 819 |
| -34.96% | Jan 27, 2004 | 139 | Aug 13, 2004 | 322 | Nov 21, 2005 | 461 |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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