Apologies for the long questions. I know you can probably write another book on those but it's not everyday any of us get to interact with people of your calibre.
Flattery will get you everywhere
Thanks for the reply.
You mentioned in your profile that you mainly focused on fundamental strategies during your tenor at AHL. How do these strategies usually work (ie what variables do they look at)? There's a lot more about price based systematic trading compared to fundamental based macro models...so I am more inclined to hear your experience in that area. What are the typical sharpe ratios and returns and how do they compare from a correlation perspective with price based systems?
I spent 4 years doing that (Formally its global tactical asset allocation.), and then 3 years on the fixed income side.
Mostly it was taking ideas from economic theory and trying to apply them. So for example you have things like PPP in currencies (google it if you're not familiar), taylor rule in interest rates, cochrance-piazzesi in bonds.
Then you can also use classic value indicators but aggregated. So for example you could buy cheap PE countries and sell expensive. Although differences in accounting, taxes, and systematic investor biases mean things can stay expensive a long time (think Japan). Ideas like Shillers PE are interesting.
You can also look at value across asset classes, eg the Fed model. Although you need to add inflation and a few other things to it to make it reasonable.
A lot of these things are correlated with carry. For example bonds tend to do well when the yield curve is steep. But a simple carry method will give you the same answer.
Holding periods tend to be long, so sharpe ratios lower (well below 1.0). In isolation you wouldn't look at these things twice, but they do add something to a basic technicals + carry model. But there is a lot of work involved in building them, and then in getting clean data. So it's something that only an institution would probably bother doing.
1. How do OTC markets differ. What advantages do they offer? How can one get access to these markets? (I know it's nearly impossible, but entertain me assuming I have the money to trade those whatever that amount requires)
There is nothing special about OTC markets, but diversification across geography and assets is a huge advantage; and many places can't be got to except through OTC instruments. For example if you want to bet on interest rates outside the major economies you have to trade swaps; there aren't liquid futures.
You need to find at least one prime broker who will clear you, and then setup relationships with other people you want to trade with. You need to hire a back office who understand about things like ISDA agrements, and who will make quarterly interest payments.
The exception of course is spot FX; where if you don't mind massive spreads and crap execution there are plenty of people happy to let retail traders play in this largest of all OTC markets.
2. Option selling strategies have large negative skew. But in your experience would a portfolio of diversified option selling strategy work? I'd love to hear if your thoughts of volatility it seems like such a good diversifying return stream.
Yes it will work. Anytime you're going to take on an insane risk you should expect the market to pay you for the privilege.
Just selling vol will always make you money, but you can improve things somewhat by delta hedging (using a method that understands ), and only selling vol when it is worth your while (when markets are range bound and implied vol is expensive). Such a strategy will have a sharpe around double what a trend , at the expense of much higher skew, but will not have the life threatening drawdowns of plain vanilla option selling.
This is an old colleague of mine:
http://www.helderpalaro.com/
If you click on 'references' there are links to enough academic papers to enable you to build a very nice option selling strategy.
GAT