Emerging as Low Vol

October 2, 2012

(This article was first published on Timely Portfolio, and kindly contributed to R-bloggers)

Extending the series begun with When Russell 2000 is Low Vol, I thought I should take a look at Emerging Market stocks during periods of low relative volatility to the S&P 500.  So you can replicate even without access to expensive data, let’s use the Vanguard Emerging Market Fund (VEIEX) and the Vanguard S&P 500 Fund (VFINX) as proxies.  In the 12 month rolling regression, we see the same fairly steadily increasing beta and correlation of the Emerging Market stocks to the S&P 500 that we saw in the Russell 2000.

From TimelyPortfolio

If I progress further on this research, I will have to work on an adaptive definition of “low vol”, but for the purpose of this post, I defined “low vol” as

Emerging 50 day std. dev – S&P 500 50 day sd > –0.075

For the Russell 2000, we used a more strict 0.0125.  Although the numeric definition is different, the chart shows a very similar profile.

From TimelyPortfolio

R code from GIST:

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