The foreign currency market is enormous (roughly $4 trillion in
daily turnover as of April 2010) and made up of major banks,
funds and investors with huge investments in personnel and
technology. It would seem strange, then, to think that there
would be any sort of seasonality – it should be arbitraged away
almost as quickly as it becomes evident. SEE: Introduction To
Currency Trading  And yet, it does seem that the U.S. dollar has
certain seasonal regularities to its trading patterns. Why
should the dollar have any sort of seasonality in its trading,
and is this something that investors can look to as a trading
opportunity?  The Case for Seasonality If an investor examines
the long-term history of the trading patterns of the U.S.
dollar, he or she will notice that the dollar is often stronger
in the first half of the year, with highs in the spring or early
summer and lows in the mid-to-late fall. These patterns have
shown up in the U.S. dollar-euro, USD/British pound, USD/yen and
USD/Swiss franc pairs year a