When Twitter reports results on Wednesday, a less than stellar showing could hammer the stock further as a broad selloff in the technology sector has made investors jittery.
Twitter's shares have lost more than two-thirds of their value in the past 12 months.
Several tech stocks with lofty valuations have plunged in the past few days after dismal sales outlook from LinkedIn Corp and business-analytics company Tableau Software fueled growth fears for the entire sector.
"I think the problem is that in the current market any sign of a weak outlook will be quite harshly punished," Atlantic Equities analyst James Cordwell said.