# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
Wash Sale
The sale and repurchase of the same asset within 30 days. The IRS does not allow an investor to claim a tax loss on a wash sale.
Weighted Average Days to Expiration
Average days to expiration for all call options in the fund's portfolio, weighted by notional values.
Weighted Average Rating Factor (WARF)
A measure that is used by credit rating companies to determine the credit quality of a portfolio. This measure allows rating companies to look at a portfolio as a single security and assign it a single rating. WARFs are usually calculated by rating companies for collateralized debt obligations (CDOs).
Wilshire U.S. Real Estate Securities IndexSM
The index is designed to measure U.S. publicly-traded real estate securities.