Soft conditions in the dental and animal health markets led to a poor quarter that missed expectations for Patterson Cos.
The Mendota Heights-based company on Tuesday also lowered earnings guidance for the rest of the year.
Investors responded with the company's shares dropping more than 16 percent to close at $39.56 on Tuesday.
Patterson earned $45.8 million, or 48 cents per share, in its second quarter ended Oct. 29.
But the company's adjusted net income from continuing operations, which excludes some nonrecurring and deal amortization costs, was $53.5 million. The adjusted earnings of 56 cents per share were unchanged from the same quarter last year and below analyst expectations.
According to Thomson Reuters, analysts covering the distributor of dental and animal health products were expecting adjusted earnings of 60 cents a share.
The company now expects non-GAAP earnings of $2.25 to $2.35 per diluted share for the fiscal year, down from the $2.60 to $2.70 per share it said it expected earlier this year.
"When we entered fiscal 2017, our guidance was predicated on end markets similar to those experienced in fiscal 2016," Scott Anderson, chairman, president and CEO of Patterson Cos., said in a statement. "But we, along with others in our industry, have seen softness in the U.S. dental market and challenges with branded pharmaceutical companies in our animal health business."