The yen carry trade
Considering the global volatility these past few weeks, pundits have been looking to blame someone or some event and this time it appears to be the yen carry trade once again. Although the Chinese market fell 9% and was the catalyst that spurred a global equities sell-off, the yen carry trade has been receiving most of the blame.
What exactly is the yen carry trade and who uses this type of complex strategy? Interest rates have been at or around zero in Japan since the early 1990s and the concept of the ''carry trade'' has been around for ages. Carry trades are used by institutions and advanced hedge funds seeking relatively risk-free yield. It is a strategy in which an investor sells a currency with a low interest rate (i.e. Japanese yen yielding just 0.25%) and uses the proceeds to purchase another currency at a higher-yielding interest rate (i.e. US dollars at 5.25%).
Locking in the difference is the key and, if leveraged, the gains (or potential losses if the trade goes sour) are magnified. The previous example would give the investor 5% (5.25%-0.25%) as long as the dollar/yen exchange rate stays constant. Therein lies the problem.
If it's that easy, why doesn't everyone do it? The size of the carry trade is estimated at US$500 billion or more, so you could argue that the herd is already fully exposed. The big risk in any carry trade is the uncertainty of foreign-exchange rates. Since the most frequently mentioned carry trade is the yen carry trade, let's focus on that.
The recent low against the dollar was 122 yen. The yen subsequently strengthened from 122 to 115 _ roughly 6% in less than 10 days. Just imagine what the Bank of Thailand would do if the baht were to go from 36 to 33.80 in a similar time period.
Why the knee-jerk reaction in global markets over the past two weeks? Actually, most global markets and especially those in Asia, excluding Thailand of course, had tremendous runs over the past three months (China +46%, HK +13%, Singapore +15% and Dow +5%). No wonder the Shanghai Composite fell 9% in one day and triggered a global sell-off in equities. Feb 27 also saw the yen appreciating more than 2.5%. In the next three days, it hit a high of 115.
Now, back to the yen carry trade. The theory is as follows: sophisticated investors are borrowing yen and not only locking in higher yields in US or Australian dollars, but using these proceeds to speculate in emerging markets and volatile global commodity plays. It would be reckless to guesstimate at what exchange rate these carry trades were put on _ 112 or 120 yen, it may be somewhat irrelevant. Generally, a depreciating yen is good for carry trades and a strengthening yen is bad. If the forex exposure is unhedged or a directional view is taken on the currency, the leverage could make losses severe.
Is the yen carry trade really the cause of global market mayhem? Partly so, but not entirely. Two recent cases, May 2006 and October 1998, were significant market events involving the yen carry trade. From 1995 to 1998, the yen depreciated around 80%. This culminated in the yen reversing and rallying 20% in two months as the carry traders would down positions. Ironically, Long Term Capital Management went bust along with the Russian debt default. As markets fell in reaction to LTCM and Russia, yen carry trades were hit hard.
In May 2006, the yen actually rallied 7%, then markets reacted and sold off. Clearly this is a chicken-and-egg scenario whereby the yen can trigger market events, be blamed unnecessarily or exacerbate market volatility.
Former US Federal Reserve chairman Alan Greenspan said recently that the yen carry trade was still going strong but ''at some point it's got to turn''.
It appears that the carry trade will live on as long as there are massive differentials in global interest rates, particularly in developed countries. If the former Fed chairman is right, global markets are in for a serious correction; at what ''point ''is anybody's guess.
Brian Hoegee is Managing Director, Asia, of Global Trader, a leading London-based derivatives provider registered with the Thai SEC. Contact him in Bangkok at 0-2625-3120 or visit
www.gt247.com