The fund applies a covered call option (or buy-write) strategy on the Dow Jones Industrial Average (DJIA), which is a price-weighted index of 30 US blue-chip companies selected by editors of the Wall Street Journal. The fund holds underlying stock positions on the DJIA and writes call options out of the money. Call options, which are either exchange-traded or over-the-counter, are selected based on the option's implied volatility. The funds strategy enables investors to earn call option premiums and have tax-efficient distributions. The option premium provides investors with limited downside protection.