An accumulation phase is a period of time when the price of an asset moves sideways or consolidates within a range, typically after a significant price move or downtrend. During this phase, buyers and sellers are balancing their positions, and the market is forming a base of support for a potential future uptrend. Accumulation phases are often characterized by decreasing trading volume and volatility, and can last from several days to several weeks.
According to Plancton's Rules, if the price of