Sharecast - Shares in Chegg were down 42% in pre-market trade after it said on Monday that since March, it had seen "a significant spike" in student interest in ChatGPT.
"We now believe it’s having an impact on our new customer growth rate," the company said in its first-quarter earnings release.
Chegg reported a 7% year-over-year decline in total net revenues to $187.6m.
At 0930 BST, Pearson (LON:PSON) shares were down 6.6% at 828.80p.