NEAIX Performance — Needham Aggressive Growth Fund, Instituitonal Class
Data updated: 2026-08-26
NEAIX returned +66.25% year to date and +90.04% over one year to Jun 2026. Annualised returns are +38.07% over 3 years and +23.40% over 5 years. The fund beat its US Small Growth category average: $100 invested three years ago grew to $263, against $156 for the category, and to $190 over one year, against $132. Volatility over the past three years was 25.16% a year. In the 12 months to Jun 2026 the fund took in a net $727.5M, and assets reached $2.61B.
NEAIX Growth of $100
What $100 invested in Needham Aggressive Growth Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Growth category average over the same months.
| Period | NEAIX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $190 | $132 |
| 3 years (Jul 2023 – Jun 2026) | $263 | $156 |
| 5 years (Jul 2021 – Jun 2026) | $286 | $127 |
| Since data start (Jan 2020 – Jun 2026) | $517 | $194 |
NEAIX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +66.25% |
| 1 year | +90.04% |
| 3 years (annualised) | +38.07% |
| 5 years (annualised) | +23.40% |
NEAIX Annual Returns
Calendar-year total returns of Needham Aggressive Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +66.25% |
| 2025 | +27.10% |
| 2024 | +14.86% |
| 2023 | +38.38% |
| 2022 | −27.02% |
| 2021 | +38.43% |
| 2020 | +52.35% |
NEAIX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +10.7% | +7.2% | −5.6% | +21.4% | +12.6% | +8.5% | — | — | — | — | — | — |
| 2025 | +3.2% | −6.3% | −9.4% | +0.9% | +14.3% | +10.1% | +2.8% | +3.0% | +4.5% | +6.3% | −6.1% | +3.4% |
| 2024 | +2.5% | +11.3% | +4.0% | −6.0% | +7.2% | −2.5% | +1.9% | −3.2% | +0.7% | −5.8% | +9.8% | −4.1% |
| 2023 | +10.0% | +0.9% | −1.6% | −6.8% | +14.3% | +9.7% | +7.3% | −5.3% | −3.3% | −6.9% | +8.6% | +9.2% |
| 2022 | −13.1% | −2.5% | +0.9% | −11.4% | −1.0% | −8.4% | +13.8% | −1.5% | −9.3% | +4.6% | +5.0% | −4.8% |
| 2021 | +4.6% | +3.2% | −0.7% | +1.8% | +1.6% | +7.0% | +0.4% | +2.4% | −0.7% | +7.6% | +5.7% | +0.6% |
| 2020 | +0.4% | −3.5% | −13.7% | +16.7% | +7.9% | +7.3% | +12.0% | +1.7% | −3.2% | −1.1% | +16.0% | +6.6% |
NEAIX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 25.16%
- 3-year Sharpe ratio: 1.33 (vs 4.5% risk-free rate)
- Best month: +21.42% (Apr 2026)
- Worst month: −9.42% (Mar 2025)
NEAIX Fund Flows
Monthly money in and out of Needham Aggressive Growth Fund, from SEC Form N-PORT.
- 12-month net flow: $727.5M
- 12-month gross sales (incl. reinvestments): $1.1B
- Sales ÷ redemptions: 2.99×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $153.6M | $54.9M | $98.7M |
| May 2026 | $123.9M | $53.1M | $70.8M |
| Apr 2026 | $102.4M | $35.4M | $67.0M |
| Mar 2026 | $112.4M | $32.7M | $79.7M |
| Feb 2026 | $79.9M | $30.2M | $49.7M |
| Jan 2026 | $109.1M | $34.1M | $75.0M |
| Dec 2025 | $60.9M | $17.3M | $43.6M |
| Nov 2025 | $71.6M | $31.8M | $39.8M |
| Oct 2025 | $69.9M | $18.5M | $51.4M |
| Sep 2025 | $101.3M | $19.3M | $82.0M |
| Aug 2025 | $47.1M | $13.7M | $33.5M |
| Jul 2025 | $61.2M | $24.9M | $36.3M |
NEAIX Assets Under Management
Net assets of Needham Aggressive Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $2.61B |
| 2026-03-31 | $1.57B |
| 2025-12-31 | $1.22B |
| 2025-09-30 | $1.08B |
| 2025-06-30 | $829.73M |
| 2025-03-31 | $665.12M |
| 2024-12-31 | $816.71M |
| 2024-09-30 | $846.03M |
| 2024-06-30 | $807.49M |
| 2024-03-31 | $666.80M |
| 2023-12-31 | $397.27M |
| 2023-09-30 | $291.62M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.