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QuantumScape Corporation (QS) shares are trading higher today following Tuesday’s announcement of a strategic partnership with Corning Incorporated (GLW) to jointly develop ceramic separator manufacturing capabilities for solid-state lithium-metal batteries. The collaboration brings together QuantumScape’s next-generation battery technology with Corning’s world-class expertise in ceramics manufacturing, marking a significant step toward commercial-scale production. As of mid-morning trading on Wednesday, October 1, 2025, QuantumScape shares were trading at $14.36, up $2.04 or 16.56% from the previous close of $12.32, as the market continues to digest the implications of the partnership.

Partnership Aims to Unlock Commercial Production of Next-Gen Batteries
 

The agreement announced Tuesday between QuantumScape and Corning focuses on developing high-volume manufacturing processes for ceramic separators, which are essential components in QuantumScape’s solid-state battery technology. The partnership leverages Corning’s 170-year track record in materials science and its deep manufacturing capabilities in glass and ceramics production. According to Dr. Siva Sivaram, CEO and President of QuantumScape, Corning’s capabilities make it an ideal addition to the company’s technology ecosystem as they work to build scalable production infrastructure.

The collaboration represents an important milestone in QuantumScape’s strategy to build a comprehensive partner ecosystem for rapidly industrializing its battery technology. Ron Verkleeren, Senior Vice President of Corning’s Emerging Innovations Group, emphasized the shared spirit of innovation driving both companies forward. The partnership aims to achieve commercial-scale production of ceramic separators that will enable QuantumScape’s high-performance solid-state batteries designed for greater energy density, faster charging, and enhanced safety compared to traditional lithium-ion batteries.

QS Shares Rally on Strong Momentum, But Valuation Concerns Remain
 

QuantumScape shares have experienced remarkable momentum in 2025, with year-to-date gains of approximately 175% as the partnership continues to generate positive market reaction. Today’s trading shows the stock opened at $12.30 and reached an intraday high of $14.63, with trading volume hitting over 47 million shares compared to an average volume of approximately 44 million. The company’s market capitalization has expanded to $8.3 billion, though the stock remains unprofitable with a trailing twelve-month EPS of negative $0.84.

The continued upward movement follows a series of positive developments for QuantumScape, including early production of its “Cobra” ceramic separator and a successful live demonstration of its batteries in a vehicle alongside Volkswagen’s PowerCo division. Despite analyst price targets averaging around $6.22 with recommendations ranging from sell to hold, retail investor enthusiasm remains strong. The company’s 52-week range spans from $3.40 to $15.03, with the current price approaching the upper end of that range driven by speculation about potential partnerships and commercialization progress.

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