Hi RedJoker
Hi Fintan, I've linked a lot of material here but there's some good reading in there.
To say a hedge fund is 50% long and 50% short is completely innacurrate,
It seems I've been focusing on market-neutral long/short equity hedge funds. According to Investopedia there are a number of other types of hedge funds. However, the ones I'm describing appear to be in the majority.
while some trading strategies still employ some sort of arbitrage using this technique, due to the large number of active hedge funds these techniques are less effective, therefore hedge funds have to become even more leveraged to makes gains which leads nicely onto my second point
If it's pure arbitrage then it doesn't matter how much you leverage it because, by definition, it is zero risk. The hedge funds I was describing weren't arbitrageurs.
According to [broken link removed] article market neutral funds "in general, leverage no more than three or four times capital, with most using significantly less leverage than that."To say hedge funds are low risk / low volaility again is extremely innaccurate eg. due to their high leverage small movements in prices will cause huge swings in P&L
Maybe a read of a book on Long Term Capital Management would be in order. (LTCM was an Uber hedge fund that went bust and nearly collapsed the world econonmy).
From the same article:
"Quantitative funds were recently the target of negative media coverage following the severe losses by Long Term Capital Management, Ltd., a U.S. hedge fund. The negative attention focused on the fact that Long Term Capital failed despite the technical wizardry of its management team, which included Nobel Prize winners Robert Merton and Myron Scholes, and despite its claim of being market neutral. In fact, Long Term Capital was not market neutral in the sense in which I am defining the term. Rather than balance long and short equity positions, Long Term Capital bet on a convergence of spreads between various fixed income sectors, which is not a truly market neutral strategy, as prices of bonds can - and, in fact, did - diverge. Further, Long Term Capital Management’s losses were caused by the use of an extreme amount of leverage, up to 30 times its capital, which is atypical of market-neutral long/short equity funds."
TBH I have too many books I need to read before I could get to this. I checked up on Wikipedia though.
"As LTCM's capital base grew, they felt pressed to invest that capital somewhere and had run out of good bond-arbitrage bets. This led LTCM to undertake trading strategies outside their expertise."
This is another problem, diligent investors would have seen the signs in time and gotten out. I'd guess that most hedge fund blow-ups are caused by funds trading outside their area of expertise. Investors should have been able to see this beforehand.