Nokia (NOK 7.84%) shares should seemingly be up today. ET today, however, Nokia's stock is down 8%. It's needed to increase the capacity of mobile networks increasingly being used for data-intensive artificial intelligence applications. Given that this bullishness was so AI-dependent, however, any worry that undermines artificial intelligence stocks as a group isn't going to exclude this one. Most artificial intelligence stocks were already overvalued -- the market just needed the right reason to right-price them.