Following are lists of January's best and worst-performing stocks in the S&P 500 SPX. And further down is a close look at performance and valuations for the index and its 11 sectors. All investment ...
CrowdStrike Holdings was recently the Nasdaq's best-performing stock as it and other cybersecurity companies got a boost after Chinese artificial intelligence startup DeepSeek reported a cyberattack.
The news that DeepSeek was able to develop generative AI technology for far less money than OpenAI spent on ChatGPT has investors concerned that the hardware build-out that enabled Nvidia's stunning ...