The following video is from Wednesday's MarketFoolery, in which host Chris Hill and Motley Fool analysts Bryan White and Matt Argersinger dissect the hardest-hitting investing stories of the day.

Shares of Baidu (BIDU 1.24%) hit a new all-time high today, and the company also increased guidance. While Q3 profits only rose 1.3%, Matt and Bryan discuss just how much of the company's revenue it is reinvesting in building out its mobile platform and how much success it is finding there. With 81% of the market share in search in China, our analysts also discuss the dominance of Baidu in that country today.