A new method for computing the standard errors of returns-based risk and performance estimators for serially correlated returns is developed. The method uses the fact that any such estimator can be represented as the sum of returns that are transformed using the estimator's influence function,...

Standard quantitative portfolio analysis techniques, including mean-variance analysis, historical risk and performance estimation, and various portfolio optimization techniques, implicitly require all assets under consideration having the same length of return histories. Unfortunately, it is...

It is well-known that outliers exist in the type of multivariate data used by financial practitioners for portfolio construction and risk management. Typically, outliers are addressed prior to model fitting by applying some combination of trimming and/or Winsorization to each individual...