Indexology®: Inside the S&P 500®: Stocks, Not Indices, Move Markets
July 02, 2015 at 07:00 AM EDT
The S&P 500 is not only the most widely used index for ETFs and funds, it is also the index of choice for researching markets. Much of the research focuses on the index pop — how much a stock jumps when it joins the index. About ten years ago some papers on comovement appeared arguing...