NEAGX vs. OAKEX
NEAGX (Needham Aggressive Growth Fund) and OAKEX (Oakmark International Small Cap Fund) are both mutual funds - NEAGX is a Small Cap Growth Equities fund managed by Needham, while OAKEX is a Foreign Small & Mid Cap Equities fund managed by Oakmark. Over the past 10 years, NEAGX returned 21.19%/yr vs 7.95%/yr for OAKEX. A 0.51 correlation means they provide meaningful diversification when combined. NEAGX charges 1.86%/yr vs 1.34%/yr for OAKEX.
Performance
NEAGX vs. OAKEX - Performance Comparison
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Returns By Period
In the year-to-date period, NEAGX achieves a 49.38% return, which is significantly higher than OAKEX's -1.73% return. Over the past 10 years, NEAGX has outperformed OAKEX with an annualized return of 21.19%, while OAKEX has yielded a comparatively lower 7.95% annualized return.
NEAGX
- 1D
- -0.74%
- 1M
- -5.50%
- 6M
- 38.51%
- YTD
- 49.38%
- 1Y
- 69.74%
- 3Y*
- 32.30%
- 5Y*
- 20.17%
- 10Y*
- 21.19%
OAKEX
- 1D
- 0.94%
- 1M
- -0.32%
- 6M
- -2.71%
- YTD
- -1.73%
- 1Y
- -2.01%
- 3Y*
- 9.77%
- 5Y*
- 4.16%
- 10Y*
- 7.95%
NEAGX vs. OAKEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NEAGX Needham Aggressive Growth Fund | 49.38% | 26.40% | 14.31% | 37.65% | -27.53% | 37.56% | 51.53% | 43.82% | -16.09% | 8.75% |
OAKEX Oakmark International Small Cap Fund | -1.73% | 29.51% | -3.00% | 19.59% | -14.50% | 17.90% | 5.00% | 31.91% | -23.71% | 26.03% |
Correlation
The correlation between NEAGX and OAKEX is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.48 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.51 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.58 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.54 |
Correlation (All Time) Calculated using the full available price history since Aug 31, 2001 | 0.51 |
The correlation between NEAGX and OAKEX has been stable across timeframes, ranging from 0.48 to 0.58 - a consistent structural relationship.
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Return for Risk
NEAGX vs. OAKEX — Risk / Return Rank
NEAGX
OAKEX
NEAGX vs. OAKEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Needham Aggressive Growth Fund (NEAGX) and Oakmark International Small Cap Fund (OAKEX). 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.
| NEAGX | OAKEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.54 | ||
| Sortino ratioReturn per unit of downside risk | +2.99 | ||
| Omega ratioGain probability vs. loss probability | 1.38 | 0.98 | +0.40 |
| Calmar ratioReturn relative to maximum drawdown | 4.92 | -0.16 | +5.08 |
| Martin ratioReturn relative to average drawdown | 17.45 | -0.45 | +17.90 |
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Drawdowns
NEAGX vs. OAKEX - Drawdown Comparison
The maximum NEAGX drawdown since its inception was -41.80%, smaller than the maximum OAKEX drawdown of -70.12%. Use the drawdown chart below to compare losses from any high point for NEAGX and OAKEX.
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Drawdown Indicators
| NEAGX | OAKEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -41.80% | -70.12% | +28.32% |
Max Drawdown (1Y)Largest decline over 1 year | -14.01% | -17.18% | +3.17% |
Max Drawdown (3Y)Largest decline over 3 years | -28.49% | -17.18% | -11.31% |
Max Drawdown (5Y)Largest decline over 5 years | -36.31% | -38.40% | +2.09% |
Max Drawdown (10Y)Largest decline over 10 years | -36.31% | -49.61% | +13.30% |
Current DrawdownCurrent decline from peak | -9.96% | -6.79% | -3.17% |
Average DrawdownAverage peak-to-trough decline | -8.65% | -13.47% | +4.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.94% | 6.22% | -2.28% |
Volatility
NEAGX vs. OAKEX - Volatility Comparison
Needham Aggressive Growth Fund (NEAGX) has a higher volatility of 13.68% compared to Oakmark International Small Cap Fund (OAKEX) at 4.83%. This indicates that NEAGX's price experiences larger fluctuations and is considered to be riskier than OAKEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| NEAGX | OAKEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.68% | 4.83% | +8.85% |
Volatility (6M)Calculated over the trailing 6-month period | 24.59% | 12.22% | +12.37% |
Volatility (1Y)Calculated over the trailing 1-year period | 29.25% | 15.10% | +14.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.36% | 17.77% | +7.59% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.50% | 18.29% | +6.21% |
NEAGX vs. OAKEX - Expense Ratio Comparison
NEAGX has a 1.86% expense ratio, which is higher than OAKEX's 1.34% expense ratio.
Dividends
NEAGX vs. OAKEX - Dividend Comparison
NEAGX's dividend yield for the trailing twelve months is around 1.43%, less than OAKEX's 5.34% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NEAGX Needham Aggressive Growth Fund | 1.43% | 2.14% | 0.00% | 0.00% | 0.00% | 7.10% | 3.91% | 10.64% | 16.57% | 5.17% | 6.72% | 11.88% |
OAKEX Oakmark International Small Cap Fund | 5.34% | 5.24% | 6.38% | 1.83% | 1.89% | 0.61% | 1.87% | 0.21% | 8.93% | 3.64% | 3.09% | 5.06% |
Frequently Asked Questions
NEAGX and OAKEX have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
NEAGX has higher volatility (13.68%) compared to OAKEX (4.83%). In terms of maximum drawdown, NEAGX dropped -41.80% vs OAKEX's -70.12%.
NEAGX currently has the higher Sharpe Ratio (2.35 vs -0.19), 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.
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