QuantumScape Stock Plummets 13.47% Despite Breakthrough in Battery Technology Trading Volume Drops to 104th Position

On June 27, 2025, QuantumScape (QS) experienced a significant decline, with its stock price dropping by 13.47%. The trading volume for the day was 7.33 billion, marking a 45.88% decrease from the previous day, placing it at the 104th position in terms of trading volume for the day.

QuantumScape recently announced a significant breakthrough in its solid-state battery manufacturing process. The company claims that this advancement will enable much faster and more efficient battery production. This development is part of QuantumScape's ongoing efforts to integrate its Cobra separator process into its baseline production line, which is expected to result in faster, more energy-efficient production with a smaller equipment footprint compared to earlier processes.

QuantumScape's co-founder and CTO, Tim Holme, described the Cobra process as a "step-change innovation in ceramic processing," highlighting its potential to significantly improve productivity. This milestone is seen as a major advancement in the company's journey towards commercializing its solid-state batteries, which could disrupt the electric vehicle (EV) market if successfully brought to market.

Despite the promising technology, QuantumScape's stock has faced significant volatility. The company has a history of making major claims but has struggled to deliver on those promises, leading to a more than 90% decline from its high in 2020. The competitive landscape for solid-state batteries is intense, and if QuantumScape falls behind its rivals, the stock could face further declines. Investors are advised to approach QuantumScape with caution, given the high-risk nature of the investment.