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Jumat, 15 April 2016

Sorry your return is too high for us - forex trading strategies simple

Sorry your return is too high for us ~ forex trading strategies simple


I enjoyed reading Richard Wilsons The Hedge Fund Book (Richard also runs the Hedge Fund Blogger site). To be clear: it is purely marketing-oriented. It doesnt tell you how to find a successful trading strategy, but its focus is to tell you how to market your fund to investors once you have a successful strategy. To that end, it does a pretty good job in conveying what might be conventional wisdom to seasoned fund managers. (For e.g., dont bother to market to institutional investors if your AUM is less than $100M.) The book is filled with quite engaging interviews with fund managers, fund marketers, and other fund service providers (including our very own administrator Fund Associates). If Scott Pattersons The Quants is about the gods of hedge funds, this book is for and about the mortals.

One paragraph in the book stood out: "Ive worked closely on the third-party marketing and capital introduction/prime brokerage side of the business, and I often see both types of firms deny clients service [to funds with high returns and high risk] ... Nobody wants to be associated with a manager aiming at 30 percent a month returns."

Maybe not aiming at, but whats wrong with achieving a 30 percent a month returns? I have actually met institutional investors who dont want to look at a fund that actually achieved double-digit monthly returns. Presumably thats because they believe that a high return automatically implies high risk, and also presumably a high leverage as well.  I would argue that there are 2 reasons not to completely dismiss such funds out-of-hand:

1) Leverage should not be determined arbitrarily, but should be based on the minimum of whats dictated by half-Kelly (see my extensive discussions of Kelly formula on this blog and in my book) and whats dictated by the maximum single-day drawdown seen historically or in VaR simulations. And if this minimum still turns out to be higher than what most institutional investors are comfortable with, one should be bold enough to adopt it in your fund.

2) As an investor, there is an easy way to control leverage and risk: just apply Constant Proportion Portfolio Insurance (a concept also discussed elsewhere on this blog). For example, if the fund manager tells you the fund employs a constant 10x leverage (as dictated by the risk analysis outlined in 1) and you are only comfortable with 5x leverage, just invest half your capital into the fund, and keep the other half as cash in your bank account! Going forward, if the fund loses money, your effective leverage would have decreased to below 5x. Say you invested $1M into the fund, and kept $1M in the bank. And say the fund lost $0.5M. Your total equity is now $1.5M, and the fund manager is supposed to trade a $0.5M*10=$5M portfolio. Your effective leverage is now only 3.33x, well within your tolerance. Now if instead, the fund made money, you can immediately withdraw some of the profits to keep your effective leverage at 5x. So, say the fund made $0.5M. Your equity is now $2.5M, and the fund manager is supposed to trade a $1.5M*10=$15M portfolio. If you dont withdraw, this would increase your effective leverage to 6x. But if you immediately withdraw $0.25M, then the fund manager will trade a $1.25M*10=$12.5M portfolio, giving you an effective leverage of the desired 5x.

If you are an investor in hedge funds, please let us know what you think of this scheme in the comments section!
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Sabtu, 26 Maret 2016

Are high oil prices due to hedge fund speculation - andrew forex trading system

Are high oil prices due to hedge fund speculation ~ andrew forex trading system


The economist Paul Krugman advances an interesting argument today in the New York Times against the idea that high oil prices are due to hedge fund speculation.

He believes that speculative buying can lead to persistent high prices (which has been the case for the last few years) only if there is physical hoarding. Yet oil inventory level has been normal for this period.

Indeed, I have been trying to find a mean-reverting strategy to trade oil and oil-related assets for some time now. So far, none have outperformed (even on a risk-adjusted basis) just buy-and-hold energy stocks for the long term!


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High frequency trading ideas - forex grid trading strategy system

High frequency trading ideas ~ forex grid trading strategy system


I just started reading Larry Harris book "Trading and Exchanges" (thanks to Max Damas glowing book review) and already a couple of potential high frequency trading techniques stood out:

"Quote matching" - a technique whereby front-runners place a limit buy order just a cent (for stocks) higher than the best bid price. If the order is filled, they then place a limit sell order just a cent lower than the best ask. Assuming the best bid-ask quotes dont move, the worst they can do is to lose 1 cent by selling the share back to the best bidder, while the most profit they can make is the bid-ask spread plus rebates for providing liquidity minus 2 cents by having the sell long limit order filled. This could work out quite profitably if the bid-ask spread is wide. But of course, the best bid-ask do change constantly, so front-runners would need to cancel and correct their limit orders constantly, and the optimal algorithm for doing this could get quite complicated. Meanwhile, if you are a bona fide liquidity provider, you would have to avoid providing this free option to the front-runners by constantly monitoring who is in front of you. As usual, this chess game can quickly degenerate into an HFT arms race.

"Manipulation of stop orders" - a.k.a. "gunning the market", a technique whereby the market gunners buy aggressively so as to trigger large buy stop orders that they believe are in place at a higher price. When these buy stop orders are filled, the prices are driven higher still, and these manipulators then sell their position profitably.

One of my old momentum strategies was a victim of these market gunners, and after that sad experience I refused to use stop orders any more, at least for stocks. However, here is a question for our knowledgeable readers: can other traders actually see what stop orders there are on an order book (whether for stocks, futures, or Forex markets)? And if so, would a trading robot that simulates stop orders by sending out buy market orders when the stop price is touched work better than manually placing a buy stop order on the order book?
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