The S&P 500 posted a solid on Monday, with QuantumScape (NYSE: QS) as a major standout. As of the market close, the solid-state EV battery technology company was higher by 9.5% and traded more than 13% higher at certain points.

Some of the move in QuantumScape's price appears to be momentum-driven. Including today's gain, the EV battery technology stock is up nearly 27% already in 2025, with gains in every trading session.

A report Monday about President-elect Donald Trump's tariff plans could be serving as the latest catalyst for growth.

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Source Fool.com