(Bloomberg) -- Nvidia Corp. and ASML Holding NV shares plunged early Monday as Chinese artificial intelligence startup DeepSeek appeared to provide comparable performance to Western chatbots at a fraction of the price.Most Read from BloombergWhat Happened to Hanging Out on the Street? Vienna Embraces Heat Pumps to Ditch Russian Gas Billionaire Developer Caruso Slams LA Leadership Over Wildfires How Sanctuary Cities Are Preparing for Another Showdown With Trump Hoboken PATH Station Will Close for...