QuantumScape Shares Plunge 14% as Solid-State Battery Stocks Decline
QuantumScape (QS) shares fell 14% to $5.03 on July 23, 2026, following its Q2 2026 earnings release, despite beating loss estimates and announcing a solid-state battery partnership with Honda. The broader solid-state battery sector also declined, with Solid Power (SLDP) down 8% and SES AI (SES) down 10%. The sell-off occurred amid a risk-off market environment, with the S&P 500 down 1.5% and NASDAQ 100 down 2.4%. QuantumScape reported a narrower-than-expected net loss of $0.16 per share, reaffirmed its full-year adjusted EBITDA loss guidance, and trimmed capital expenditure plans. The company highlighted partnerships with Honda, Volkswagen's PowerCo, and a major American defense prime, as well as engagement with AI data center design partners. Bears cite no near-term revenue and manufacturing execution risk, while bulls see potential in EVs, AI data centers, and defense markets.
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