上週四，美元兌日元匯率創下三週新低，再加上東京股市的下跌，大大促進了日元的買入量。
美元/日元跌至110.78，是3月17日以來的最低點，隨後略微反彈至110.85。而紐約時間上週一的價格為111.37。
因為對日本企業的信心減退以及油價的疲軟，標準日經指數NIK失守，對日元等避險產品的需求逐步增加。
貨幣市場參與者還提及了亞洲會議期間的對沖基金社區的影響力。
商品交易顧問投機性地買入日元作為對沖，似乎是在故意推動日元走高。當時是日本新一年商業年度的開端，因此貨幣交易量相對較少。亞洲人通常都是趨勢的追隨者，他們會擴大市場趨勢的波動幅度。
日本銀行承銷商某高管稱，“我們在投機地賣出美元”，這使得美元/日元在3月17日跌至110.67。
但銀行承銷商認為貨幣市場的波動沒有增加，這意味著貨幣交易員沒有開始恐慌。人們猜測，如果美元繼續走高，日本當局可能會加以幹涉來支撐日元。如果保持穩定下滑趨勢，美元兌日元可能從110.67跌至110.50。
美聯儲主席耶倫近來表示，美國在年内將採取溫和的措施，這個信號已經給美元帶來了一些壓力。
歐元/日元的匯率自126.8跌至126.17，而英鎊/日元則自158.79跌至157.86。
澳大利亞儲備銀行週四決定將關鍵利率維持在2%的歷史最低水平，隨後澳元/美元出現了反彈。在決策發佈之前，澳元/美元上漲至0.7592，澳元/日元自84.11上漲至84.23。
歐元/美元維持在1.1390不變。
華爾街美指下跌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 currencyEURJPY, -0.92% fell to ¥126.17 midday from ¥126.80, while the U.K. poundGBPJPY, -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.
本文翻譯由兄弟財經提供
文章來源：http://www.marketwatch.com/story/dollar-hits-three-week-low-against-yen-as-nikkei-tumbles-2016-04-05