The artificial intelligence (AI) ecosystem was rocked recently by news that Chinese start-up DeepSeek had developed a cost-effective and competent large language model on the cheap. That revelation called into question the tens of billions of dollars that are being poured into the buildout of AI infrastructure,

The popular phrase "reports of my death are greatly exaggerated," an adaptation of a famous Mark Twain quote, is a terrific way to describe Nvidia (NASDAQ: NVDA) after the DeepSeek bombshell (more on this below) sank its stock more than 20%.

Atlassian is unlocking a new phase of growth thanks to artificial intelligence (AI), which is a key reason its stock has more than doubled since the middle of last year. However, it's still trading 33% below its all-time high set during the tech frenzy in 2021, so it's not too late for investors to consider adding it to their portfolio.