Chinese regulators have imposed limits on the number of lucrative healthcare adverts carried by Baidu Inc following the death of a student who underwent an experimental cancer treatment which he found using China's biggest Internet search engine.
Baidu's Nasdaq-listed shares fell more than 3% in morning trade on Monday following the move. Healthcare accounts for 20% to 30% of the company's search revenue, analysts at Nomura and Daiwa said, while search revenues represented some 84% of the web services firm's total sales in 2015.
