Are currency market dynamics shifting?

There has been a major shift in market pricing for US interest rates following the US jobs report and comments from Fed officials including Atlanta Fed president Lockhart, suggesting that the Fed should not wait too long before tightening monetary policy.  As a result the implied yield on the December 09 3-month eurodollar futures contract has spiked by around 50bps since the middle of last week and markets have now moved to pricing in a US rate hike by year.  This looks wildly premature given the likely absence of inflation pressures for many months to come. 

The most interesting reaction to the shift in interest rate expectations was exhibited by the dollar which has managed to register solid gains over the last couple of days indicative of the past relationship between the dollar and interest rate expectations.  The odd thing about the strengthening in the dollar is that it has come at a time when risk appetite has continued to improve, suggesting that the strong risk appetite/dollar relationship that has been in place for much of the past year could be diminishing in strength.  For instance, the correlation between various dollar crosses and the VIX volatility index has been higher over the last few months than it has been in previous years.   

Admittedly its early days and the bounce in the dollar may just have reflected a market that was positioned very short dollars.  There was already signs of some short covering prior to the release of the US May jobs report as reflected in the CFTC IMM commitment of traders’ report which showed that net aggregate dollar speculative positioning (vs. EUR, JPY, GBP, AUD, NZD, CAD and CHF) improved for the first time in five weeks.  It is not inconceivable that investors have continued to cover short positions over the last few days.  

Nonetheless, it is difficult to ignore the possibility that currency market dynamics may be shifting back towards interest rate differentials as a key FX driver.  Over recent months the interest rate / FX relationship had all but broken down as reflected in very low and insignificant correlations between interest rate differentials and various currency pairs.  This could be changing and as interest rate markets begin to price in higher rates the relationship with currency markets may once again be strengthening.  

The risk for the dollar is that this tightening in US interest rate expectations looks premature.   It seems highly unlikely that the Fed will raise rates this year which points to the risk of a turnaround in rate expectations at some point over coming weeks and months.  In turn this suggests that the dollar could come under renewed pressure in the event of a dovish shift in US interest rate markets.  Even so, this is a factor to consider further out.  Over the next few days such a shift is unlikely and the dollar is likely to hold onto and even extend its gains as markets continue to ponder the probability that the Fed tightens policy sooner rather than later.


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