In trading on Wednesday, shares of the WisdomTree SmallCap Dividend Fund ETF ( DES) entered into oversold territory, changing hands as low as $62.59 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 WisdomTree SmallCap Dividend Fund, the RSI reading has hit 29.3 — by comparison, the RSI reading for the S&P 500 is currently 33.5. A bullish investor could look at DES's 29.3 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), DES's low point in its 52 week range is $53.54 per share, with $68.10 as the 52 week high point — that compares with a last trade of $62.73. WisdomTree SmallCap Dividend Fund shares are currently trading off about 1.3% on the day.