The New Smart Beta Factor Exposure: U.S. Dollar Sensitivity
There have been two very important trends in the asset management and exchange-traded fund (ETF) industry WisdomTree has pioneered over the last decade.
First was the rise of smart beta or factor exposures to deliver strategic equity allocations designed to improve risk-adjusted returns by rebalancing funds based on the concept of relative valuations. Second was the use of currency-hedged equities to more directly target the local market returns while neutralizing currency exposure.
WisdomTree believes a third new category incorporates important elements of both trends by providing unique U.S. equity factor exposures related to currency sensitivity.
Increasingly, views on the U.S. dollar have motivated a desire for international equities to be currency hedged, especially for exposures in Europe and Japan. Japan, a largely export-driven market with a negative correlation between its equities and its currency (the yen), has demonstrated how important currency could be to the performance of its stock market. As the yen weakened in 2013 and 2014, Japan equities1 soared due to Japan’s improving export competitiveness and rising profits.
Currency Factor in U.S. Equities
But currency moves are not just important to foreign markets. In the U.S, we have also seen U.S. dollar strength impact stocks that are exposed to sales in foreign markets. It is widely known that a significant percentage of the revenues of U.S. companies in the S&P 500 Index come from abroad. These companies have reported large currency headwinds as part of their earnings statements this year. This can be seen in the relative performance of the S&P 500 Index against European2 and Japanese exporters3, who have benefited from the yen and euro, respectively, weakening against the U.S. dollar.
In the chart below, we look at the 12 months ending June 30, 2015, to indicate a period when the U.S. dollar strengthened significantly against both the euro and the yen.
Impact of U.S. Dollar Shown in European and Japanese Exporters Outperforming the S&P 500 Index
• Europe and Japan Exporters Perform Strongly: We can see that as the yen and the euro depreciated against the U.S. dollar, both Japan exporters and Europe exporters outperformed the S&P 500 Index.
The Newest Factor Tilt: Currency Sensitivity
Most smart beta indexes have a weighting process that tilts weight to factors such as valuation, quality, momentum or low volatility. For instance, WisdomTree’s Dividend Stream® -weighted approach can be described as a modified market cap index that tilts market cap weight to stocks with higher dividend yields. Mathematically, the Dividend Stream equals dividends per shares x shares outstanding, but it also equals market cap x dividend yield.
WisdomTree believes currency sensitivity is an important factor for helping to explain portfolio returns and has thus incorporated it into an indexing process through a factor tilt that is conceptually similar to the dividend tilt described above.
There are two ways WisdomTree incorporated this currency sensitivity into a new indexing approach by introducing two innovative Indexes:
1) Stock Selection: Focus on Local Economy versus Export-Oriented U.S. Stocks.
2) Weighting: WisdomTree’s currency factor Indexes tilt market cap weights to stocks whose returns are more sensitive (or correlated) to the returns of the U.S. dollar. The mathematical adjustment uses the rank of the correlation of each stock’s returns relative to the returns of the U.S. dollar to smoothly tilt5 the starting market cap weight toward stocks whose returns have exhibited certain correlations with the returns of the U.S. dollar.
How These Strategies Work
One of the most important macroeconomic forces impacting the market have been currency changes motivated by diverging monetary policies. If the U.S. dollar continues to be strong over the coming years, as is WisdomTree’s baseline view, this can provide a continued headwind to U.S. exporters and favor the WisdomTree Strong Dollar U.S. Equity Index.
Conversely, if one views the U.S. dollar strength as a fleeting trend set to reverse, such an environment would favor U.S. exporters and the WisdomTree Weak Dollar U.S. Equity Index.
1Refers to the Tokyo Stock Price Index (TOPIX) universe; source: Bloomberg.
2Refers to the WisdomTree Europe Hedged Equity Index, tracked by the WisdomTree Europe Hedged Equity Fund (HEDJ) before fees and expenses.
3 Refers to the WisdomTree Japan Hedged Equity Index, tracked by the WisdomTree Japan Hedged Equity Fund (DXJ) before fees and expenses.
4Refers to the Federal Reserve U.S. Trade-Weighted Dollar Index.
5Technically, the correlation factor of the weighting uses an exponential weighting process based on the correlation rank. This correlation factor is 75% of the weight, while the market cap component is 25% of the weight.