Over the long term, stocks are the way to grow wealth, according to Bank of America.
Some $5.43 trillion is in money market funds, as of the week ending June 21 , according to the Investment Company Institute.
"That's another way of saying that the S & P 500 is one of the world's best wealth-generating machines ever constructed," she added.
Further, financial crises tend to be followed by economic and earnings growth cycles, along with sustained price gains for stocks.
"All of the above are powerful structural forces for future long-term earnings growth — and key reasons not to rebalance too far in the direction of money market funds," Sanfilippo wrote.
Persons:
Lauren Sanfilippo, Sanfilippo, — CNBC's Michael Bloom
Organizations:
Bank of America, Investment Company Institute . Retail