Carvana's stock was down 3.7% in early-afternoon trading. It has now slumped about 15% since closing at a record $390.17 on July 31 following that positive second-quarter report.

Before the opening bell, Minnesota-based retailer Target and home improvement company Lowe's are slated to report quarterly results.

Stocks may be struggling in the U.S. on Wednesday, but the same can't be said for what's going on in the U.K. The FTSE 100, ...

The stock market dipped on Wednesday, driven by a decline in tech stocks and Target announcing the appointment of a new CEO ...