Trend Trading: Emerging Markets ETF relative to The S&P 500 Index ETF

Using a relative strength indicator over a 200 day average, the Emerging Markets ETF (EEM) $EEM is outperforming The S&P 500 Index ETF (SPY) $SPY by 10%. The crossover from below to above trend was on October 19th and a channel breakout on November 4th. Comments welcome. Stockchart below: