Ambiq Micro Soars 74% in U.S. IPO Debut, Hits Volatility Trading Halt

TradingKey - Artificial intelligence and ultra-low-power semiconductor company Ambiq Micro (AMBQ) made its U.S. market debut recently, surging on its first trading day. The stock opened at $38, up 58.3% from its $24 IPO price, and at one point climbed as much as 74.17%, triggering a temporary volatility trading halt.

Founded in 2010, Ambiq Micro specializes in delivering ultra-low-power chip solutions for AI computing and edge devices. Its core technology, the SPOT platform (Sub-threshold Power Optimized Technology), leverages patented design to operate transistors in a “sub-threshold” voltage range, dramatically reducing power consumption. This makes it especially well-suited for edge AI applications with extreme energy efficiency demands, such as smart wearables, medical monitoring, and industrial IoT.

Ambiq’s product portfolio includes multiple system-on-chip (SoC) designs that integrate AI processing, sensing, wireless connectivity, and security features, along with embedded software. To date, its chips have powered over 270 million devices worldwide, with 42 million units shipped in 2024 alone — more than 40% of which support AI algorithm execution.

Financially, the company generated $77 million in revenue over the 12 months ended March 31, 2025. Proceeds from the IPO will be used to fund technology development, expand market reach, and support general corporate operations.

As AI increasingly shifts toward on-device processing, Ambiq is emerging as a key player in the edge AI semiconductor space. Its low-power innovation positions it at the forefront of a growing trend, making its long-term trajectory one of the most closely watched in the sector.