NEEGX vs. NEAIX
NEEGX (Needham Growth Fund) and NEAIX (Needham Aggressive Growth Fund Institutional Class) are both mutual funds - NEEGX is a Mid Cap Growth Equities fund managed by Needham, while NEAIX is a Small Cap Growth Equities fund actively managed by Needham. Over the past 5 years, NEEGX returned 8.99%/yr vs 18.00%/yr for NEAIX. Their correlation of 0.95 means they have usually moved in the same direction. NEEGX charges 1.78%/yr vs 1.20%/yr for NEAIX.
Performance
NEEGX vs. NEAIX - Performance Comparison
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Returns By Period
In the year-to-date period, NEEGX achieves a 35.60% return, which is significantly higher than NEAIX's 33.50% return.
NEEGX
- 1D
- 0.82%
- 1M
- -9.28%
- 6M
- 16.86%
- YTD
- 35.60%
- 1Y
- 52.57%
- 3Y*
- 17.29%
- 5Y*
- 8.99%
- 10Y*
- 14.25%
- ALL TIME*
- 12.62%
NEAIX
- 1D
- 1.00%
- 1M
- -11.22%
- 6M
- 19.29%
- YTD
- 33.50%
- 1Y
- 51.23%
- 3Y*
- 25.33%
- 5Y*
- 18.00%
- 10Y*
- —
- ALL TIME*
- 19.67%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
NEEGX Needham Growth Fund | $0.00 | $0.00 | $0.00 |
NEEGX vs. NEAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NEEGX Needham Growth Fund | 35.60% | 8.76% | 14.45% | 26.85% | -33.57% | 27.63% | 41.73% | 42.33% | -10.56% | 8.33% |
NEAIX Needham Aggressive Growth Fund Institutional Class | 33.50% | 26.99% | 14.86% | 38.37% | -27.02% | 38.46% | 52.49% | 44.68% | -15.64% | 10.07% |
Correlation
The correlation between NEEGX and NEAIX is 0.93, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.93 |
Correlation (3Y) Balances recent behavior with more history. | 0.94 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.95 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017 | 0.95 |
The correlation between NEEGX and NEAIX has been stable across timeframes, ranging from 0.93 to 0.95 - a consistent structural relationship.
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Return for Risk
NEEGX vs. NEAIX — Risk / Return Rank
NEEGX
NEAIX
NEEGX vs. NEAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Needham Growth Fund (NEEGX) 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.
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.
| NEEGX | NEAIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.02 | ||
| Sortino ratioReturn per unit of downside risk | 0.00 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.26 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 2.18 | 2.01 | +0.16 |
| Martin ratioReturn relative to average drawdown | 8.91 | 8.54 | +0.36 |
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Drawdowns
NEEGX vs. NEAIX - Drawdown Comparison
The maximum NEEGX drawdown since its inception was -53.60%, which is greater than NEAIX's maximum drawdown of -35.93%. Use the drawdown chart below to compare losses from any high point for NEEGX and NEAIX.
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Drawdown Indicators
| NEEGX | NEAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -53.60% | -35.93% | -17.67% |
Max Drawdown (1Y)Largest decline over 1 year | -23.15% | -24.09% | +0.94% |
Max Drawdown (3Y)Largest decline over 3 years | -38.66% | -28.21% | -10.45% |
Max Drawdown (5Y)Largest decline over 5 years | -43.35% | -35.93% | -7.42% |
Max Drawdown (10Y)Largest decline over 10 years | -43.35% | — | — |
Current DrawdownCurrent decline from peak | -17.98% | -19.69% | +1.71% |
Average DrawdownAverage peak-to-trough decline | -10.88% | -8.60% | -2.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.65% | 5.67% | -0.02% |
Volatility
NEEGX vs. NEAIX - Volatility Comparison
Needham Growth Fund (NEEGX) and Needham Aggressive Growth Fund Institutional Class (NEAIX) have volatilities of 12.54% and 12.97%, 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
| NEEGX | NEAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.54% | 12.97% | -0.43% |
Volatility (6M)Calculated over the trailing 6-month period | 26.85% | 26.27% | +0.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 32.47% | 30.84% | +1.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 29.41% | 25.66% | +3.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.90% | 25.06% | +0.84% |
NEEGX vs. NEAIX - Expense Ratio Comparison
NEEGX has a 1.78% expense ratio, which is higher than NEAIX's 1.20% expense ratio.
Dividends
NEEGX vs. NEAIX - Dividend Comparison
NEEGX's dividend yield for the trailing twelve months is around 5.58%, more than NEAIX's 1.51% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NEAIX Needham Aggressive Growth Fund Institutional Class | 1.51% | 2.01% | 0.00% | 0.00% | 0.00% | 6.84% | 3.80% | 10.42% | 16.35% | 5.14% | 0.00% | 0.00% |
NEEGX Needham Growth Fund | 5.58% | 7.57% | 3.92% | 0.00% | 1.78% | 6.92% | 5.73% | 11.31% | 17.79% | 9.70% | 4.22% | 6.74% |
Frequently Asked Questions
With a correlation of 0.93, NEEGX and NEAIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
NEAIX has higher volatility (12.97%) compared to NEEGX (12.54%). In terms of maximum drawdown, NEEGX dropped -53.60% vs NEAIX's -35.93%.
NEAIX currently has the higher Sharpe Ratio (1.57 vs 1.55), 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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