Energy Vault Holdings, Inc. (NRGV) saw its stock price surge 6.50% in after-hours trading on Monday, following the release of its third-quarter 2025 financial results. Despite missing revenue estimates, the company's reaffirmation of its full-year guidance and other positive factors appear to have bolstered investor confidence.

The energy storage solutions provider reported Q3 revenue of $33.32 million, representing a significant 27-fold increase year-over-year. However, this figure fell short of analyst expectations of $49 million. The company's net loss narrowed to $26.82 million, while adjusted EBITDA loss improved by 59% to $6.0 million, driven by higher revenue and gross profit.

Investors seem particularly encouraged by Energy Vault's reaffirmation of its full-year 2025 guidance across all key metrics. The company maintains its revenue forecast of $200-250 million and a gross margin projection of 14-16%. Additionally, Energy Vault reported closing a $300 million preferred equity agreement for its Asset Vault business, which could contribute to future growth. The company's focus on executing its growth strategy for 2026 and beyond, coupled with its target of $75-100 million in total cash by the end of 2025, appears to have resonated positively with the market, leading to the after-hours stock price surge.