Trade Desk and memory-chip stocks tumble on earnings misses and soft guidance

The Trade Desk fell sharply after reporting an earnings miss and cautious outlook, while Western Digital, Sandisk, and related names declined double digits on disappointing forward commentary despite solid top-line growth.

Disappointing results from several high-growth technology and digital-advertising companies triggered broad selling in the after-hours session and into the following day. The Trade Desk missed estimates and guided conservatively, raising concerns about advertiser spending trends amid macroeconomic caution. Memory semiconductor firms Western Digital and Sandisk posted revenue increases yet failed to deliver the margin expansion or guidance investors had priced in, leading to steep selloffs exceeding 10-13%. These moves underscore the market’s current sensitivity to any perceived deceleration in AI-related or cyclical tech demand. The reaction also highlights how elevated valuations in the sector leave little room for execution shortfalls. Sector-wide implications include potential pressure on other ad-tech and semiconductor names ahead of their own reports, as well as a possible re-rating of growth multiples. Traders should watch upcoming earnings from similar companies and any commentary on capex plans from hyperscalers. Technical support levels on TTD and WDC will be critical; a breach could open the door for further downside, while stabilization may signal that the selloff was overdone given still-healthy underlying demand trends. Position sizing and stop-loss discipline are advisable given the binary nature of post-earnings moves.