i hope you're doing great. this module is about information and the efficient market hypothesis and we're going to begin taking a look at something called event studies. objectives for this module we're going to look at what are the most common sources of information that you can leverage for investing. learn how information relates to company value and we're going to look at the three versions of the efficient markets hypothesis that are important and the, the, the effect of what we're doing here. and finally in this module we'll look at event studies, how they work and talk about the next assignment for you involving event studies. okay. now, nearly all quantitative-based investing is based on some kind of arbitraged model.