Fund managers aren't sold that bitcoin (BTC-USD) is a screaming buy after the cryptocurrency's rout. Eighty-one percent of fund managers polled in a new Bank of America survey say bitcoin is still a bubble despite the steep price pullback. Investors view bitcoin as the second most crowded traded (investors love bitcoin perhaps too much) behind being long commodities. A total of 224 fund managers with $667 billion in assets under management participated in the survey.