Summary
Regal Rexnord stock jumped 8.4% in Tuesday trading after Kerrisdale Capital disclosed it holds a long position and published a research note asserting the company is a misunderstood beneficiary of the Physical AI revolution. The activist investor described the company as "a power transmission / motion control powerhouse" and said the shares have scope to more than double from current levels.
Strategic transformation at the center of Kerrisdale's case
Kerrisdale's thesis focuses on two major acquisitions it says have reoriented the company away from its legacy HVAC exposure and toward higher-margin motion control and data-center power equipment markets. Those deals include the $3.7 billion acquisition of Rexnord's Process & Motion Control business in 2021 and the $5.1 billion purchase of Altra Industrial Motion in 2023. According to the note, these transactions underpin the company's positioning to participate in growth across industrial automation, humanoid robotics and data-center infrastructure.
The research highlights early traction in the data-center power equipment modules market after the business entered that segment in early 2025, citing $735 million in orders accumulated by the end of the fourth quarter. It also notes the company's switchgear business has grown at a compounded annual rate of 30% over the past five years and is expected to double within two years, per the disclosure.
Profitability and valuation metrics
Kerrisdale pointed to sustained margin improvement, saying both gross and EBITDA margins have expanded meaningfully since 2018. The note further states that Regal Rexnord shares trade at roughly 11.5 times 2027 estimated EBITDA, representing a notable discount to industrial peers in the firm’s view.
Market reaction and trading details
The disclosure, combined with a risk-on market tone, produced one of RRX's strongest single-session moves in recent memory. The stock opened from a prior close of $219.88 and climbed intraday to a high of $238.45, a level that marked a new 52-week peak. Tuesday's session also served as the ex-dividend date for the company’s $0.35 quarterly cash dividend.
Broader market conditions were constructive on the day: the S&P 500 rose 0.8% and the Nasdaq gained 1.5%, driven in part by a technology-led recovery and upbeat geopolitical sentiment. The session also represented the final trading day of a quarter that is tracking as the best for both the S&P 500 and the Nasdaq in six years, helping lift appetite for risk assets.
What drove the move
The rally appears to have been driven by three converging elements: a high-conviction public disclosure from an activist investor, a narrative linking the company to AI-enabled industrial automation and data-center power growth, and a favorable macro market backdrop. Together, those factors pushed RRX from its previous close into fresh 52-week territory during the trading session.
Bottom line
Kerrisdale's public long disclosure and accompanying thesis emphasizing motion control, robotics and data-center power demand coincided with positive market momentum, resulting in a significant intraday advance for Regal Rexnord. The firm points to recent acquisitions, robust order intake in data-center modules, accelerating switchgear growth, and margin expansion as central to its bullish case while noting the shares trade at a discount to peers on a projected 2027 EBITDA multiple.