Asian currencies could be in for a wild ride in 2015, with central bank policy on track for further divergence as the Federal Reserve prepares to raise interest rates, analysts say.
"The U.S. Federal Reserve will be hiking interest rates next year, while some Asian central banks will be acting in the opposite direction. Growth momentum is firmly in favor of the U.S., while structural and cyclical slowdowns in certain parts of Asia will see growth differentials narrow," ANZ said in a note last week.
The Federal Reserve is widely expected to hike interest rates in July after unwinding its quantitative easing program this year, according to CNBC's latest Fed survey of economists, strategists and fund managers, released last week.
By contrast, most of Asia's central banks are easing. The People's Bank of China cut interest rates for the first time in two years in October, while the Bank of Korea cut rates to a record low that month. Meanwhile, the Bank of Japan remains committed to its massive stimulus effort, while calls for rate cuts in Thailand and Australia are growing.
ANZ forecasts 3 percent depreciation in Asian currencies over 2015, "a similar decline to that seen in 2014," noting that "risks are tilted towards a larger depreciation should tighter U.S. monetary policy lead to larger portfolio outflows from the region."
Saxo Capital Markets agrees.
"The world's major central banks and economies are entirely out of sync and the oil price collapse has added a dramatic new geopolitical and economic twist to global markets," Saxo's head of foreign-exchange strategy John Hardy said in a note last week. He anticipates "U.S. dollar strength on U.S. outperformance" next year.
Catalysts for volatility
There are four potential 'what if' catalysts for currency volatility next year, according to Hardy: U.S. junk bond outflows, the resignation of European Central Bank (ECB) president Mario Draghi, Chinese yuan devaluation and a substantial weakening in the Japanese yen.
"There are already signs that the junk bond market in the U.S. is under severe strain here late in 2014. Liquidity is terrible in these bonds," Hardy said. "Junk bonds related to the U.S. shale oil are the most clearly in the danger zone and investor flow out of bonds could see mayhem and see the Fed ceasing all thoughts of hiking rates," which would see the dollar weaken sharply.