Invests in public companies with long-term prospects that we believe the market misunderstands. Seeks to generate wealth by investing in companies transitioning to or already perceived as Quality Compounders.
Learn MoreNeedham Funds
Dedicated to creating wealth for long-term investors since 1992. Domestic growth equities are our focus, relationships are our foundation.
Mutual Funds
Our Funds invest in what we identify as reasonably priced growth stocks to deliver tax-efficient capital appreciation for long-term investors.
Needham Growth Fund
Needham Aggressive Growth Fund
Seeks to generate wealth by discovering and investing in Hidden Compounders in emerging areas.
Learn MoreNeedham Small Cap Growth Fund
Seeks long-term capital appreciation through what we believe to be undervalued small and micro-cap growth companies.
Learn MoreThe Latest
Essential, timely commentary and insights from Needham Funds experts.
In the News
SEE ALLMay 31, 2026
John Barr: The EDA Veteran and Award-Winning Needham Funds Portfolio Manager
May 29, 2026
CNBC’s “Squawk Box” discusses with Chris Retzler the latest market trends, what’s driving the rally in small caps, the state of the economy, and more
May 20, 2026
5 Best Cheap Stocks Under $5 to Buy Right Now
“Many of the names that we own were once $5 stocks,” says Chris Retzler, portfolio manager of the Needham Small Cap Growth Fund (ticker: NESGX). For investors willing to do their homework, he says, there can still be value in this corner of the market. Low-Priced Stocks: Opportunity or Value Trap? The key […]
Growth Factor Commentary
SEE ALLMarch 11, 2026
Secular Demand Beneath Near-Term Volatility
Chris Retzler's Insights - Vol. 4
March 03, 2026
Behavioral Alpha and Stock Market Maestros
The Growth Factor - Vol. 46 by John Barr
December 04, 2025
Structural Tailwinds Shaping Today’s Technology and Defense Markets
Chris Retzler's Insights - Vol. 3
Latest Quarterly Commentary
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