Quote from gmst:
Correct, especially with such high correlations over the last 3 yrs.
Reason why i asked above is that I can perfectly see you trading 100 different names everyday as an options trader, with a complicated spreadsheet setup and a model to hedge your Greeks during the day. Because, your actions during the day are being driven by the model.
However, trading multiple names (>20) in a day using ACD framework in a discretionary fashion, where a trader needs to make multiple decisions must be a different ballgame altogether. Unless you have got your ACD methodology completely worked out (as precise as the B-S methodology and contemporary vol modelling) and coded up using simple formulas in excel.