In trading on Friday, shares of the Guggenheim MSCI Global Timber ETF (CUT) entered into oversold territory, changing hands as low as $30 per share. We define oversold territory using the Relative Strength Index, or RSI, which is a technical analysis indicator used to measure momentum on a scale of zero to 100. A stock is considered to be oversold if the RSI reading falls below 30.In the case of Guggenheim MSCI Global Timber, the RSI reading has hit 28.8 — by comparison, the RSI reading for the S&P 500 is currently 32.0. A bullish investor could look at CUT's 28.8 reading as a sign that the recent heavy selling is in the process of exhausting itself, and begin to look for entry point opportunities on the buy side. Looking at a chart of one year performance (below), CUT's low point in its 52 week range is $25.73 per share, with $33.90 as the 52 week high point — that compares with a last trade of $30.52. Guggenheim MSCI Global Timber shares are currently trading down about 1.6% on the day.