The popping of the bubble in US stocks is far from over and investors shouldn’t get too excited about a strong start to the year for the market, warns Jeremy Grantham, the co-founder and long-term investment strategist of GMO.

Dimensional Fund Advisors, which manages $637 billion, was one of the first firms to take seminal academic financial research off of the campus and put it to work in the real-world art of managing money.

How wild was the action in the stock market on Wednesday? Wildest on record, if you judge by volume of shares traded.