In trading on Wednesday, shares of the Vanguard Intermediate-Term Government Bond ETF ( VGIT) entered into oversold territory, changing hands as low as $65.36 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 Vanguard Intermediate-Term Government Bond, the RSI reading has hit 25.2 — by comparison, the RSI reading for the S&P 500 is currently 62.6. A bullish investor could look at VGIT's 25.2 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), VGIT's low point in its 52 week range is $64.11 per share, with $67.45 as the 52 week high point — that compares with a last trade of $65.34. Vanguard Intermediate-Term Government Bond shares are currently trading off about 0.8% on the day.