In trading on Thursday, shares of the SPDR Citi International Government Inflation-Protected Bond ETF ( WIP) entered into oversold territory, changing hands as low as $53.55 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 SPDR Citi International Government Inflation-Protected Bond, the RSI reading has hit 26.3 — by comparison, the RSI reading for the S&P 500 is currently 59.2. A bullish investor could look at WIP's 26.3 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), WIP's low point in its 52 week range is $49.35 per share, with $57.71 as the 52 week high point — that compares with a last trade of $53.96. SPDR Citi International Government Inflation-Protected Bond shares are currently trading off about 0.9% on the day.