OBSOX vs. NEAIX
Compare and contrast key facts about Oberweis Small-Cap Opportunities Fund (OBSOX) and Needham Aggressive Growth Fund Institutional Class (NEAIX).
OBSOX is managed by Oberweis. It was launched on Sep 16, 1996. NEAIX is an actively managed fund by Needham. It was launched on Dec 30, 2016.
Performance
OBSOX vs. NEAIX - Performance Comparison
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OBSOX vs. NEAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OBSOX Oberweis Small-Cap Opportunities Fund | 3.71% | 14.28% | 16.13% | 15.81% | -11.17% | 43.39% | 32.52% | 25.06% | -7.05% | 25.01% |
NEAIX Needham Aggressive Growth Fund Institutional Class | 12.01% | 26.99% | 14.86% | 38.37% | -27.02% | 38.46% | 52.49% | 44.68% | -15.64% | 10.07% |
Returns By Period
In the year-to-date period, OBSOX achieves a 3.71% return, which is significantly lower than NEAIX's 12.01% return.
OBSOX
- 1D
- 4.21%
- 1M
- -7.67%
- YTD
- 3.71%
- 6M
- 7.36%
- 1Y
- 32.33%
- 3Y*
- 12.77%
- 5Y*
- 11.15%
- 10Y*
- 15.91%
NEAIX
- 1D
- 4.32%
- 1M
- -7.73%
- YTD
- 12.01%
- 6M
- 14.41%
- 1Y
- 61.23%
- 3Y*
- 27.45%
- 5Y*
- 15.66%
- 10Y*
- —
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OBSOX vs. NEAIX - Expense Ratio Comparison
OBSOX has a 1.25% expense ratio, which is higher than NEAIX's 1.20% expense ratio.
Return for Risk
OBSOX vs. NEAIX — Risk / Return Rank
OBSOX
NEAIX
OBSOX vs. NEAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Oberweis Small-Cap Opportunities Fund (OBSOX) and Needham Aggressive Growth Fund Institutional Class (NEAIX). 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.
| OBSOX | NEAIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.19 | 2.17 | -0.98 |
Sortino ratioReturn per unit of downside risk | 1.74 | 2.74 | -1.00 |
Omega ratioGain probability vs. loss probability | 1.24 | 1.38 | -0.15 |
Calmar ratioReturn relative to maximum drawdown | 2.13 | 4.33 | -2.20 |
Martin ratioReturn relative to average drawdown | 8.21 | 15.43 | -7.22 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| OBSOX | NEAIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.19 | 2.17 | -0.98 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.45 | 0.65 | -0.20 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.65 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.30 | 0.75 | -0.44 |
Correlation
The correlation between OBSOX and NEAIX is 0.86, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
OBSOX vs. NEAIX - Dividend Comparison
OBSOX has not paid dividends to shareholders, while NEAIX's dividend yield for the trailing twelve months is around 1.80%.
| 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% |
NEAIX Needham Aggressive Growth Fund Institutional Class | 1.80% | 2.01% | 0.00% | 0.00% | 0.00% | 6.84% | 3.80% | 10.42% | 16.35% | 5.14% | 0.00% | 0.00% |
Drawdowns
OBSOX vs. NEAIX - Drawdown Comparison
The maximum OBSOX drawdown since its inception was -80.52%, which is greater than NEAIX's maximum drawdown of -35.93%. Use the drawdown chart below to compare losses from any high point for OBSOX and NEAIX.
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Drawdown Indicators
| OBSOX | NEAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -80.52% | -35.93% | -44.59% |
Max Drawdown (1Y)Largest decline over 1 year | -13.92% | -13.98% | +0.06% |
Max Drawdown (5Y)Largest decline over 5 years | -28.65% | -35.93% | +7.28% |
Max Drawdown (10Y)Largest decline over 10 years | -42.79% | — | — |
Current DrawdownCurrent decline from peak | -7.67% | -7.73% | +0.06% |
Average DrawdownAverage peak-to-trough decline | -30.72% | -8.73% | -21.99% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.61% | 3.92% | -0.31% |
Volatility
OBSOX vs. NEAIX - Volatility Comparison
Oberweis Small-Cap Opportunities Fund (OBSOX) and Needham Aggressive Growth Fund Institutional Class (NEAIX) have volatilities of 12.06% and 11.64%, 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.
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Volatility by Period
| OBSOX | NEAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.06% | 11.64% | +0.42% |
Volatility (6M)Calculated over the trailing 6-month period | 19.84% | 19.83% | +0.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 28.47% | 28.92% | -0.45% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.83% | 24.33% | +0.50% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.53% | 24.46% | +0.07% |