The Relative Strength Index (RSI) is an important tool for analyzing stock movement and identifying potential opportunities. RSI indicates whether a stock is overbought or oversold and helps understand its strength and momentum. A declining RSI may signal a loss of upward momentum, while a high RSI suggests the stock may be overbought. RSI can be used alongside other indicators to validate trading signals and support investment decisions. ETMarkets has picked 10 stocks with declining RSI for further exploration.