上周四，美元兑日元汇率创下三周新低，再加上东京股市的下跌，大大促进了日元的买入量。
美元/日元跌至110.78，是3月17日以来的最低点，随后略微反弹至110.85。而纽约时间上周一的价格为111.37。
因为对日本企业的信心减退以及油价的疲软，标准日经指数 NIK 失守，对日元等避险产品的需求逐步增加。
货币市场参与者还提及了亚洲会议期间的对冲基金社区的影响力。
商品交易顾问投机性地买入日元作为对冲，似乎是在故意推动日元走高。当时是日本新一年商业年度的开端，因此货币交易量相对较少。亚洲人通常都是趋势的追随者，他们会扩大市场趋势的波动幅度。
日本银行承销商某高管称，“我们在投机地卖出美元”，这使得美元/日元在3月17日跌至110.67。
但银行承销商认为货币市场的波动没有增加，这意味着货币交易员没有开始恐慌。人们猜测，如果美元继续走高，日本当局可能会加以干涉来支撑日元。如果保持稳定下滑趋势，美元兑日元可能从110.67跌至110.50。
美联储主席耶伦近来表示，美国在年内将采取温和的措施，这个信号已经给美元带来了一些压力。
欧元/日元的汇率自126.8跌至126.17，而英镑/日元则自158.79跌至157.86。
澳大利亚储备银行周四决定将关键利率维持在2%的历史最低水平，随后澳元/美元出现了反弹。在决策发布之前，澳元/美元上涨至0.7592，澳元/日元自84.11上涨至84.23。
欧元/美元维持在1.1390不变。
华尔街美指下跌0.02%，跌至86.62。
Dollar hits three-week low against yen as Nikkei tumbles
The yen was stronger against its rival currencies in Asian trade Tuesday, hitting a three-week high against the dollar, with yet another decline in the Tokyo stocks prompting buying in the Japanese currency.
The U.S. dollar USDJPY, -0.74% slid to ¥110.78, its lowest level since March 17, before regaining slightly to ¥110.85. That compared with ¥111.37 late Monday in New York.
Amid deteriorating corporate sentiment in Japan and oil price weakness, the benchmark Nikkei Stock Average NIK, -2.42% lost ground, boosting demand for safe-haven assets such as the yen. The benchmark was down 2.0% at midday, on track to end lower.
Currency market participants also pointed out hedge fund community’s clout on the yen during the Asian session.
Specifically, speculative yen buying by commodity trading advisors, a type of hedge fund, seems to have kicked in to intentionally send the Japanese currency higher, at the time when currency trading volumes remain relatively thin after Japan’s new business year started April 1. CTAs often act as a trend follower which can easily make for wide fluctuations in the market’s trend.
“We are seeing speculative (dollar) selling” to bring the dollar to ¥110.67, its low set on March 17, said a senior Japanese bank dealer.
But the dealer said volatility in the currency market is not increasing, which suggests currency traders are not panicking. A further decline in the dollar may spark speculation about intervention to stem the yen’s strength by the Japanese currency authorities. Still, the dollar may drift lower against the yen to test ¥110.67 or ¥110.50, as long as the currency keeps ratcheting down at a moderate pace, the dealer said.
The dollar has already been pressured down by Federal Reserve Chairwoman Janet Yellen’s recent signal the Fed was taking a dovish stance this year.
The Japanese currency strengthened against the euro. The common currency EURJPY, -0.92% fell to ¥126.17 midday from ¥126.80, while the U.K. pound GBPJPY, -0.99% declined to ¥157.86 from ¥158.79.
The Australian dollar AUDUSD, -0.3025% pared earlier losses, following the Reserve Bank of Australia’s decision on Tuesday to leave its key interest rate at a record low 2.0%. The Aussie rose to $0.7592 and AUDJPY, -1.03% ¥84.11 midday respectively from $0.7592 and ¥84.23 before the decision.
The euro EURUSD, -0.1843% was unchanged at $1.1390.
The WSJ Dollar Index BUXX, +0.06% a measure of the dollar against a basket of major currencies, was down 0.02% at 86.62.
本文翻译由兄弟财经提供
文章来源：http://www.marketwatch.com/story/dollar-hits-three-week-low-against-yen-as-nikkei-tumbles-2016-04-05