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The Yen in Three Charts



The dollar is taking out a several month downtrend against the yen.

The correlation between the yen and the S&P 500 has broken down.

The US 2-year premium over Japan has steadily risen.


One of the big stories in the foreign exchange market this year has been the strength of the Japanese yen. It is up 17.3% so far this year, despite negative interest rates through 10-years and among the worst stock markets with the Topix off 13.4%.
We suggest that the answer to the conundrum posed by the yen’s strength lies with the Japanese themselves. The yen’s weakness associated with the launch of Abenomics coincided with the diversification of Japanese pension fund managers offshore. The recovery of the yen has coincided with the hedging of these flows and the raising of hedge ratios by insurance companies and corporations.
The Yen in Three Charts
This first Great Graphic, created on Bloomberg, shows that the modest dollar gains during this six-day advancing streak have been sufficient to lift the greenback through a nearly five-month-old downtrend.  The dollar is poised to close above its 50-day moving average against the yen for the first time in almost a month.   We see immediate resistance near JPY102.80, which corresponds to the high from the second half of September and a retracement target of the drop from the early-September high near JPY104.30.
The chart also shows that the dollar’s downside momentum has eased since the end of Q2 16.  Since then the dollar has moved broadly sideways in its trough.  It late-September it again tested the JPY100 level, and it held.  The August low was set near JPY99.50, and UK-referendum spike low was nearer JPY99.00.

Yen daily trend

Yen daily trend

Yen daily trend - Click to enlarge

What is driving the dollar-yen exchange rate appears to be changing. This second chart shows the correlation between the percentage change in the dollar-yen and the percentage change in the S&P 500. On this Bloomberg chart, we show the rolling 60-day correlation since the start of 2015.
In Q2 15, the correlation was negative, but after that period had ended, the correlation reached 0.90 in Q3 2015. It fluctuated, but as recently as the beginning of the Q3 it was near 0.60. It has fallen to near zero now. The weakening of the correlation between the yen and the S&P 500 suggests that the yen’s so-called safe haven status has weakened.

Japan Yen and S&P 500 Index

(see more posts on S&P 500 Index, Yen, )
Yen and S&P 500 Index


The third chart here suggests another potential driver of the dollar-yen exchange rate. This Bloomberg chart depicts the two-year interest rate differential between the US and Japan over the last several months. The US 2-year yield is up 21 bp over the past three months to stand a little above 80 bp. Over the same period, the Japan’s 2-year yield has risen 4.5 bp. The spread is near 109 bp today.  It has matched the late-July high.
Usually, the long-end differentials more important for the dollar-yen rate. The spread has been flattish for two months. It last poked through 200 bp in April, and since then has been trending lower. It reached a low in early September near 155 bp. It is currently a little above 170 bp. On September 20 it was at 175 bp.

USD, JPY 2-years Index

(see more posts on USD/JPY, )
USD, JPY 2-years Index



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Marc Chandler
He has been covering the global capital markets in one fashion or another for more than 30 years, working at economic consulting firms and global investment banks. After 14 years as the global head of currency strategy for Brown Brothers Harriman, Chandler joined Bannockburn Global Forex, as a managing partner and chief markets strategist as of October 1, 2018.
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