Just look at Poloniex's charts for DGB:
8th Oct 2015 - 13.8 million DGB bought that sent the price from 38 to 222 SAT.
31st dec 2015 - 13.5 million DGB bought that sent the price from 30 to 34 SAT.
The rise from 38 to 222 was after a breakout. Once you take out all the supply on the orderbooks, then you rise fast with more buying.
When you are in the middle of a trading range and the orderbook is full, it takes a lot to move the coin. However, this is the time to accumulate cheap so that you will be able to take profits on the pump.