Some of Wall Street's most-hyped trends and innovations are showing signs of breaking down. For decades, game-changing technologies and innovations have played a big role in sending the benchmark S&P 500 (^GSPC +0.91%), growth-fueled Nasdaq Composite (^IXIC +0.67%), and mature stock-driven Dow Jones Industrial Average (^DJI +1.43%) to new heights. The arrival and mainstream proliferation...

Zscaler shares tumble despite earnings beat and upbeat outlook 

Nutanix shares tumble as revenue guidance falls short of expectations