Candlesticks vs Order Flow
A candlestick only shows the high, low, open, and close of a given period. It hides whether the volume inside the candle was aggressive buying (market buys) or passive limit absorption.
When price is making lower lows while Cumulative Volume Delta is making higher highs, aggressive sellers are being swallowed by institutional limit orders. This CVD divergence is one of the highest probability reversal setups in professional derivatives trading.