Nasdaq, S&P 500 end lower on renewed AI growth worries ahead of big tech earnings

The Nasdaq and S&P 500 closed lower amid renewed concerns over the sustainability of AI-driven growth, weighing on investor sentiment ahead of major tech earnings. The sell-off reflects a repricing of forward growth expectations and a tightening in risk appetite, particularly for high-duration tech and growth stocks that are sensitive to shifts in long-term revenue assumptions. This has led to a rotation toward more defensively positioned sectors and increased demand for lower-beta assets. Markets are now closely focused on upcoming earnings reports from key tech giants, which will serve as a critical catalyst in validating or alleviating concerns about AI monetization and capital expenditure efficiency. Any deviation in guidance or cloud/AI revenue trends from these reports could trigger further volatility in growth-sensitive equities.

The Nasdaq-100 (NDX) is the US large-cap tech benchmark. NDX is more sensitive to rate decisions than SPX because of longer-duration cash flows, and heavily concentrated in Tech/Comms names — mega-cap earnings season dominates price action.

HIGH-impact news is typically a market-moving event with multi-pip or multi-percent intraday reactions. Examples include central bank rate decisions, major CPI/NFP releases, geopolitical shocks, mega-cap earnings beats/misses, and regulatory announcements. Traders typically position-reduce or hedge ahead of scheduled HIGH-impact events, and follow the wire in real time to react to unscheduled ones (war headlines, central-bank emergency statements, surprise corporate actions). The Trading News Terminal squawk box reads every HIGH-impact headline aloud the moment it hits the wire — so active traders don't have to stare at the feed.

Active traders typically follow a three-step workflow when a market-moving headline hits the wire: (1) read the headline on the terminal or hear it on the squawk box; (2) assess whether the news is already priced in (by checking intraday price action in the seconds before) or whether it's genuinely new information; (3) act — either entering a breakout position, fading an overreaction, or tightening stops on existing trades. Trading News Terminal's Pro plan delivers wire-grade headlines within seconds of the source, with automatic audio squawk on every HIGH-impact event, so the read-assess-act cycle never waits on a refresh button.