In trading on Monday, shares of the iShares MSCI All Country World Minimum Volatility Index Fund ETF ( ACWV) entered into oversold territory, changing hands as low as $57.95 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 All Country World Minimum Volatility Index Fund, the RSI reading has hit 27.5 — by comparison, the RSI reading for the S&P 500 is currently 35.3. A bullish investor could look at ACWV's 27.5 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), ACWV's low point in its 52 week range is $53.32 per share, with $64.49 as the 52 week high point — that compares with a last trade of $58.11. iShares MSCI All Country World Minimum Volatility Index Fund shares are currently trading off about 2.1% on the day.