For hedge funds looking for volatility, an Apple a day might keep profits healthy, but this leaves big banks' foreign exchange desks facing thinner pickings in a market where volumes are flat and trading ranges tight. Since the beginning of February, Apple shares have traded up from $455 a share to $644 and down to $555 before rebounding to Friday's $603 close in New York. In the same period, the euro has traded between $1.2970 and $1.3485 - less exciting and potentially far less profitable. Hedge funds looking to trade the euro zone periphery's woes directly might think a play on the Spanish IBEX stock index , which ... (full story)