The euro surged as much as 1.6 percent against the dollar in the
Asian morning Friday as a rush of computer-generated orders caught
traders off guard.
The sudden move started under $1.05 and
algorithmic orders snowballed above that level, causing what little
liquidity there was on the year’s last trading day to vanish, according
to foreign-exchange traders. In minutes, Europe’s single currency jumped
to a high of $1.0653, forcing some dealers to take losses to cover
Euro Surge Amid Thin Liquidity Evokes Sterling Memories: Chart
“The market automatically ran through stops” as the euro
rose, said Sebastien Galy, a strategist at Deutsche Bank AG in New York.
“As activity falls sharply during the year end period, it takes a
larger currency move to reach some fundamental demand.”
The spike came amid signs that the dollar rally since Donald Trump’s
election may be over-extended, with the S&P 500 Index and Treasury
yields indicating they may have topped out in mid-December when the
Federal Reserve raised benchmark rates. The greenback is on track to
drop against most of its major peers this week. Since Nov. 8, the dollar
has climbed about 11 percent against the yen and about 4 percent
against the euro.
“Markets are extremely thin and perhaps position turning occurred,”
said Shigeki Yoshitoshi, head of Japan foreign-exchange and commodities
sales at Australia & New Zealand Bank Group Ltd. in Tokyo. The more
gentle decline in dollar-yen at the same time was led by the euro, and
suggested that there wasn’t a broader shift toward risk aversion, he
The sharp move in the world’s most-traded currency pair
punctuated a year that’s seen several unexpected moments of extreme
volatility, most notably the pound flash crash
in October. During that event, the British currency dropped more than 6
percent against the dollar in two chaotic minutes also in early Asian
trading, exacerbated by a rush of computer-driven sell orders amid thin
The euro was accompanied by the franc in its surge
Friday, with the Swiss currency also spiking 1.6 percent against the
dollar. The yen climbed as much as 0.4 percent. Some traders were
holding shorts from stop-loss buy orders through the $1.0539 high
touched on Dec. 15, while at least one trader had only anticipated the
euro hitting $1.0550 with his positions.
An hour later, the currencies had pared gains and traders
were swapping stories on who had come out ahead in dealing rooms. The
euro was up 0.7 percent as of 10:36 a.m. in New York. The yen had
flipped to a 0.2 percent loss from a 0.4 percent advance.
volumes in the $5.1 trillion-a-day foreign exchange market have
coincided with surging volatility and more cases of violent market
moves, the Bank for International Settlements said in a report earlier
this month. There is concern that extreme price swings will become
increasingly common, with Boston-based consultant Aite Group estimating algorithmic transactions have more than tripled in the past three years.