"Fresh talk of a takeover boosted Prudential 29p to 655p. Only yesterday the shares were lifted by talk of a possible bid from Ping An Insurance, China's second-biggest life assurer, which has just raised £11bn."
http://www.thisismoney.co.uk/investing-and-markets/tips-and-tactics/article.html?in_article_id=429669&in_page_id=23&ct=5