All the money in quant investing is currently coming from analyzing data sets that are not publicly available. Things like credit card data, mobile phone locati

All the money in quant investing is currently coming from analyzing data sets that are not publicly available. Things like credit card data, mobile phone locations, receipt data, etc. When those are crossed with traditional economic indicators and equities prices, a fuller picture emerges. When a data set is updated, i.e. credit card transactions come out for last week, retail stocks will move accordingly. Modeling this as an outsider without access to that data is like trying to predict a black box.