Resideo Stock Soars 66%: Alta Fox Bets Big on REZI

On February 13, 2026, activist fund Alta Fox Capital Management disclosed a significant new position in Resideo Technologies (REZI). The fund purchased 1.266 million shares worth approximately $44.49 million, making Resideo one of its top five holdings.

This investment represents nearly 10% of Alta Fox's reported assets under management, showing concentrated conviction rather than a small diversification play. The fund is known for taking substantial positions in companies it believes have untapped value.

Resideo's stock has already been performing strongly, up 66.68% over the past year and significantly outperforming the S&P 500. The company provides comfort and security solutions under brands like Honeywell Home through both manufacturing and distribution segments.

The timing coincides with Resideo's strong third-quarter results, including record net income of $156 million (up 680% year-over-year) and record adjusted EBITDA of $229 million. The company also raised its full-year 2025 guidance.

This isn't just another institutional investment—it's a strategic bet from a fund known for identifying undervalued companies with catalysts. Alta Fox's track record suggests they see specific value-unlocking opportunities at Resideo.

The investment validates Resideo's transformation story. While revenue grew modestly at 2% year-over-year, the dramatic 680% net income surge shows the company is successfully expanding margins through operational efficiency.

Resideo's planned separation of its Products & Solutions and ADI Global Distribution segments could create significant shareholder value. Alta Fox likely sees this corporate action as a catalyst that could unlock hidden value in the sum of the parts.

For retail investors, following smart money moves can provide valuable insights. When a sophisticated investor puts 10% of their portfolio into a stock, it's worth understanding their thesis—especially when the company is already executing well operationally.