The fund posted a return of 6.52 percent, or about 64 points above the average.

The fund posted a return of 6.78 percent, or about 71 points better than the average.

For the first two months, the index has posted a return of 11.6 percent.

Two years later, however, the fund posted a 5.7 percent negative return.

Since 1990, eight of the 10 stock market sectors have posted positive returns, on average, over those six months.

Both funds have generally posted positive returns on the worst days.

But this year, through July 31, about 7 out of 10 funds in its category posted better returns.

Donoghue's said the fund posted a return of 6.40 percent, or about 76 points better than the average.

The Federated fund is also a leader for the 12 months, posting a total return of more than 31 percent.

It has posted a three-year annualized return of 14.4 percent.