Ambiq Micro, a 15-year-old manufacturer of energy-efficient chips for wearable and medical devices, closed its first day of trading on Wednesday at $38.53 a share, a 61$24 IPO price the company set the previous day.The success of the IPO signals strong investor demand in the public market for new small-cap companies benefiting from AI innovation. Ambiq closed its first day as a public company with a valuation of $656 million (excluding employee options). This represents a significant in ...