Cardano (ADA) whales have been accumulating the cryptocurrency, buying 160 million ADA during the end-of-year pullback.ADA has experienced a New Year rally, increasing by 27% in the past week and reclaiming the $1 mark.Cardano whales have continued to accumulate ADA, with over 10 million ADA acquired in the last 24 hours.Cardano's price attempted to break out of a bullish pattern, signaling potential bullish sentiment from large-scale investors.