Amprius Technologies Inc. shares soared more than 12% in morning trading Tuesday, climbing to $22.07 as investors piled into the high-energy-density silicon anode battery maker amid growing excitement over its role in powering next-generation electric vehicles, drones and defense applications.

At 11:43 a.m. EDT, Amprius (NYSE: AMPX) stock had gained $2.46, or 12.54%, on heavy volume. The sharp move extended a strong 2026 run for the company, whose shares have more than quadrupled year-to-date on optimism surrounding its silicon anode technology and aggressive revenue growth targets.