WSJ: Thorp and Gross interview

The Wall Street Journal interview of Ed Thorp and Bill Gross:

Mr. Thorp: In the last 15 years or so, there has been a large flow of capital into the hedge-fund world, from $100 billion in the early 1990s to $2 trillion now. But the amount of available investing opportunities hasn't increased that much. That has led to the over-betting phenomenon Bill and I were talking about, or gambler's ruin.

Hedge funds started using a great deal of leverage to increase returns. But you can get wiped out if you bet too aggressively. A classic example is Long-Term Capital Management [the huge hedge fund that blew up in 1998]. We'll probably be seeing more of that now.

Mr. Gross: It's true that the available edge has been diminished, and that led to increased leverage to maintain the same returns. It's the leverage, the over-betting, that leads to the big unwind. Stability leads to instability, and here we are. The supposed stability deceived people.

Mr. Thorp: Any good investment, sufficiently leveraged, can lead to ruin.