Its five-year return is also above average.

All have had five-year returns above the average for their groups.

With a gain that large, how could the fund's five-year return have dropped more than 59 percentage points in just a few months?

"Trailing five-year returns are still pretty anemic" on the Europe funds, he said.

But the overall five-year return on a junk bond portfolio would still be a healthy 54 percent.

The fund's performance surge stands in stark contrast to its five-year return through June 30 - negative 1.08 percent, annualized.

At the time it had a five-year return on equity of 50 percent.

It seems the fund, despite a five-year average return of 28.3 percent, has gone out of its way to discourage publicity and investors.

Its five-year annual return is almost 7 percentage points better than the 16.5 percent of its peers.

Through 2008, the fund had a five-year total return of 25%.