Value Line Index Futures
The Kansas City Board of Trade introduced these first index futures in 1982. Unlike other indices, the Value Line Index used a geometric formula, thus ensuring that its value would always under-perform an arithmetic formula for calculating the same index. The futures became infamous when Goldman Sachs traders, realizing the opening created by the geometric formula, began shorting the futures.
The first derivative of the option price as regards the volatility of the underlying stock.
Wall Street Journal
One of the best-respected sources of information about the economy and markets, the Wall Street Journal was founded in 1889. Dow Jones and Company publishes it. In 2007 the News Corporation bought Dow Jones, adding the Wall Street Journal to Rupert Murdoch’s holdings.
Weak EMH is a derivative of the EMH theory. The theory states that stock prices fully reflect all market trading data, such as the history of past prices, trading volume, or short interest. This version of the hypothesis implies that trend analysis is futile. This form of EMH is the most supported version of EMH but still runs into problems when trying to explain the tech stock bubble in 2000 and the housing bubble in 2006.