https://www.live-feeds.com/feed/servicenow-shares-plunge-27-to-worst-day-ever-after-earnings-revive-ai-disruption-fearsContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/servicenow-shares-plunge-27-to-worst-day-ever-after-earnings-revive-ai-disruption-fearshttps://www.live-feeds.com/feed/servicenow-shares-plunge-27-to-worst-day-ever-after-earnings-revive-ai-disruption-fears#u173524Wed, 04 Nov 2026 09:00:07 +0000ServiceNow shares dropped 27% following third-quarter earnings that fell short of expectations, marking the worst single-day drop in the company's history and making the stock the worst performer in the S&P 500. The disappointing quarterly sales outlook and a missed key revenue measure reignited investor concerns about artificial intelligence disruption across the software sector. Fortinet shares also tumbled 25% as Q3 earnings reports dragged down the broader software and cybersecurity markets.Why it mattersThe sharp selloff highlights growing Wall Street anxiety regarding how artifi