In trading on Tuesday, shares of the iShares MSCI Poland Capped ETF ( EPOL) entered into oversold territory, changing hands as low as $25.30 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 iShares MSCI Poland Capped, the RSI reading has hit 26.9 — by comparison, the RSI reading for the S&P 500 is currently 33.6. A bullish investor could look at EPOL's 26.9 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), EPOL's low point in its 52 week range is $25.30 per share, with $31.24 as the 52 week high point — that compares with a last trade of $25.52. iShares MSCI Poland Capped shares are currently trading off about 1.6% on the day.