Polen Capital, an investment management company, released its fourth-quarter investor letter for “Polen 5Perspectives Small Mid Growth Strategy”. A copy of the letter can be downloaded here. The Polen 5Perspectives Small-Mid Growth Composite Portfolio returned -0.1% gross and -0.3% net of fees in the fourth quarter of 2025, compared to a 0.3% return of the Russell 2500 Growth Index. Following double-digit returns in 2Q and 3Q, SMID caps concluded the year with a 0.3% return in 4Q. Biotech stood out as a major performer during the quarter, expanding beyond the AI theme. The name of the Strategy changed from Polen U.S. SMID Cap Growth to Polen 5Perspectives Small Mid Growth, to emphasize the significance of the 5 viewpoints framework and the influence of perspective in investing. In addition, please check the Strategy’s top five holdings to know its best picks in 2025.

In its fourth-quarter 2025 investor letter, Polen 5Perspectives Small Mid Growth Strategy highlighted stocks like Sandisk Corporation (NASDAQ:SNDK). Sandisk Corporation (NASDAQ:SNDK) is a computer technology company that specializes in data storage devices and solutions build on NAND flash technology. On March 17, 2026, Sandisk Corporation (NASDAQ:SNDK) stock closed at $720.17 per share. One-month return of Sandisk Corporation (NASDAQ:SNDK) was 19.95%, and its shares gained 1,178.48% over the past 52 weeks. Sandisk Corporation (NASDAQ:SNDK) has a market capitalization of $106.298 billion.

Polen 5Perspectives Small Mid Growth Strategy stated the following regarding Sandisk Corporation (NASDAQ:SNDK) in its fourth quarter 2025 investor letter:

"The top contributors to the Portfolio’s relative performance in the quarter were Bloom Energy, Sandisk, and First Solar. Sandisk Corporation (NASDAQ:SNDK) is a provider of high-performance flash memory storage products (Solid State Drives, memory cards, and USB Flash Drives, etc.). AI requires immense volumes of fast, high-capacity data storage in data centers, edge devices, and consumer products, creating strong demand for its flash memory solutions which in turn allowed the company to exercise pricing power. This all culminated in very strong results and raised guidance during the quarter, as the company appears poised to experience AI related tailwinds for the foreseeable future."

Sandisk Corporation (NASDAQ:SNDK) is not on our list of 40 Most Popular Stocks Among Hedge Funds Heading Into 2026. According to our database, 75 hedge fund portfolios held Sandisk Corporation (NASDAQ:SNDK) at the end of the fourth quarter, up from 61 in the previous quarter. While we acknowledge the potential of Sandisk Corporation (NASDAQ:SNDK) as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you're looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.

In another article, we covered Sandisk Corporation (NASDAQ:SNDK) and shared a list of stocks worth watching. In addition, please check out our hedge fund investor letters Q4 2025 page for more investor letters from hedge funds and other leading investors.

READ NEXT: 33 Stocks That Should Double in 3 Years and 15 Stocks That Will Make You Rich in 10 Years.

Disclosure: None. This article is originally published at Insider Monkey.