Author: Andrey N. Bolkonsky Candlestick Index (CSI, based on Candlestick Momentum Indicator) is described by William Blau in the book “Momentum, Direction, and Divergence: Applying the Latest Momentum Indicators for Technical Analysis”. The values of Candlestick Index are normalized (price range) and mapped into the [–100,+100] interval. The positive values of CSI correspond to overbought