When Kohl’s Corp. on Monday announced it was getting a new chief executive next year, investors got suspicious. On Tuesday, the department-store chain confirmed those suspicions, reporting results that missed expectations and sending shares sharply lower.

Kohl's CEO Tom Kingsbury will step down after less than two years at the helm, paving the way for former Walmart executive Ashley Buchanan to take on the role as the department store chain looks to execute a turnaround.

Kohl's expects sales to be down 7-8% for the year, which is the third quarter in a row the company has changed its expectation of its performance.