Southwest Gas Holdings (SWX) climbed about 5.6% in Thursday trading to around $90.92, extending a multi-month run and pushing the shares to a new 52-week high around $90.03. The move appears tied to a bullish mix of technical breakout buying and a renewed fundamental narrative around regulated-rate recovery and multi-year earnings visibility. (in.investing.com)

Investors have been leaning into SWX’s “pure-play regulated gas utility” story following management’s recent update that capped a strong 2025 and introduced forward growth metrics for 2026 and beyond. The company reported utility net income of $300 million and adjusted net income of $284 million for 2025, said those results exceeded the top end of its prior guidance range, and highlighted credit-rating upgrades to BBB+; it also initiated 2026 and forward-looking EPS and rate-base guidance metrics and emphasized additional regulatory filings aimed at improving achieved returns. (investors.swgas.com)

A key support for the stock is the expectation that upcoming rate-case proceedings can lift returns and cash-flow visibility. Southwest Gas submitted a general rate case application in Arizona on February 27, 2026 seeking a $101 million revenue increase (with a stated target for new rates to take effect by April 2027 if approved), and public notices indicate a new Nevada application was filed on March 18, 2026 to increase retail natural gas utility service rates in Southern and Northern Nevada. (h1www.swgas.com)

Near-term, investors are likely to track procedural milestones and settlement discussions in the Arizona and Nevada dockets, along with any updates to SWX’s multi-year capex and rate-base trajectory. Management has also linked longer-run growth potential to the Great Basin expansion opportunity, with expectations of meaningful capital deployment beginning in 2026. (investors.swgas.com)