When Walmart Sportswear and Wal-Mart Stock Drop Amid Stock Price Concerns

The stock market plunged on Wednesday after reports that the U.S. Justice Department is investigating Wal-Marts stock practices in connection with the sale of prescription drug products to the company.

The Wall Street Journal reported that a group of lawyers from the Justice Department filed a civil complaint Wednesday alleging that the company “willfully violated” its fiduciary duty to its shareholders by selling prescription drugs in a manner that was “willful, abusive, or in bad faith.”

The company also faces an additional charge of misappropriating the profits from the sale.

A spokesperson for Wal-mart did not immediately respond to CNBC’s request for comment.

Wal-marts shares were down more than 20% in after-hours trading Wednesday.