COVID-19 no longer cracks the top three in terms of what's worrying the market, while Bitcoin's rally has reached bubble territory, according to the latest Bank of America Fund Managers Survey.Bitcoin ([[BTC-USD]], +5%) set a new record today, topping $63K for the first time as Coinbase (COIN) prepares to go public.And 74% of those surveyed say the crypto is now in a bubble, compared with just 7% who see equities in a bubble (most think stocks are in a late-stage bull market).Among pitfalls, 32% think a bond taper tantrum (yields surging if the Fed removes accommodation) is the biggest risk. That's followed by inflation at 27%.The March CPI saw the biggest monthly gain since August 2012, but the market took it in stride, attributing much of the rise to base effects.Higher taxes was the third-biggest risk, followed by COVID.A little more than a 30% of respondents considered long technology (XLK) the