The invention relates generally to data analysis, and to systems and methods for the computation of {HEAD ~ the volatility} of {TAIL ~ a loss} 
of
The invention relates generally to data analysis , and to systems and methods for the computation of { HEAD ~ the volatility } of { TAIL ~ a loss }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL