Central banks are now the biggest concern among fund managers, according to the December BofA survey. Hawkish central bank rate hikes is now the biggest tail risk at 42%, taking the top spot from inflation, which is down to 22% this month. It's the first time central bank hikes have been the biggest worry since May 2018. A COVID-19 resurgence is in the third spot at 15%, moving ahead of asset bubbles, now in fourth at 8%. Rounding out the list is geopolitics at 6%, China credit contagion at 4% and an emerging market currency crisis at 1%. Of the 371 participants with $1.1T of assets under management, a slight majority of 55% still see inflation as transitory. More than a third, 36%, say it's permanent. They rotated cash into healthcare and cut exposure to tech to a 12-month low. "Allocation to technology declined 10ppt MoM to net 21% overweight,"