The neutral wire color is white in USA, Canada and other countries which run a 60 Hz electrical power service. The neutral wire color is blue in countries in Europe and eâ¦lsewhere which run a 50 Hz electrical power service.
Melpomenem/iStock/Getty Images. The Holding Period Return is an investment measure that calculates the return you have received on your investment over the length of time that you have held the investment.
(May 2011). The time-weighted return (or true time-weighted rate of return (TWROR)) is a measure of the historical performance of an investment portfolio which compensates for external flows.nvestment managers are judged on investment activity which is under their control. If they have no control over the timing of flows, then compensating for the timing of flows using the true time-weighted return method is a superior measure of the performance of the investment manager.