Recap 18.41 sunday 6 oct 2019

Employing an ETF pairs strategy may be useful when there is a disconnect between assets that are usually highly correlated.

Sector, country, and index ETFs also provide opportunities for the pairs trader, usually involving going long on a strong ETF and short on a weaker one. It’s important to exit the trades when the assets realign or the trends of strong and weak assets reverse.

It would also be wise to set a loss limit on each trade, and realize that markets are dynamic; relationships that existed yesterday may not necessarily exist tomorrow.

Consider our S&P 500 and Dow Jones index example. These indexes are highly correlated and both are tradable via ETFs: the S&P 500 SPDR (SPY A) and the Dow Jones Industrial SPDR (DIA A-). When the two separate, they generally reconnect, although that can take days or months.
Beyond Technical AnalysispairtradingspreadTrend Analysis

Disclaimer