comScore stock dropped Monday after the company said its directors received a message regarding “potential accounting matters.”
The company launched an internal review, postponed its March 16 investor day and suspended a share repurchase program.
The review is not expected to be completed before March 15. As a result comScore filed for an extension to file its 10-K annual report 15 days late.
comScore shares were down 27% in morning trading Monday.
Last year the company agreed to acquire Rentrak and is expected to roll out a number of new TV audience measurement products that might put pressure on Nielsen, the ratings leader.