Stock market today: Dow, S&P 500, Nasdaq slide as Nvidia earnings loom large

Nvidia's earnings are critical for the momentum of the tech sector, particularly concerning AI stocks, which have recently surged. However, high expectations and the risk of failure to meet them could lead to a negative reaction in the stock. As its profits depend heavily on AI demand, any sign of unmet expectations could result in a significant drop.

Target's guidance cut and earnings miss could lead to sustained downward pressure on its stock, reflecting broader retail sector challenges as consumer spending slows. The company's drastic adjustment to its earnings forecast signals potential trouble in the retail industry, likely leading to a continued bearish outlook.