Recently we could saw a major jump in the BTC-addresses with 1000 or more coins. At current prices, this means between 30-40 million USD worth of bitcoin. These are definitely not retail investors. The most possible explanation is, all of it belongs to high net worth individuals, for diversification.
The previously ATH, the 20k USD have held almost three long years, and after this resistance had defeated, the price rallied more than 100% in a few weeks. Additionally, the liquid BTC, exchange reserves decreasing since March last year. It seems the big players also recognize bitcoin as a store of value.