TRIX
TRIX is a Triple Exponential Average indicator. It is an oscillator and a momentum indicator. It oscillates around zero. Positive values indicate that the market is overbought and negative values indicate the market is oversold. A positive TRIX indicates there is an increase in momentum, and negative TRIX indicates a decrease in momentum. TRIX can help to determine when to buy or sell.
Formula
TRIX = (Exponential Moving Average today - Exponential Moving Average yesterday ) / (Exponential Moving Average yesterday )