• Credit Suisse report shows cash is leaving bond, equity funds
• First back-to-back months of simultaneous outflows since 2008

Mom and pop are running for the hills.

Since July, American households — which account for almost all mutual fund investors — have pulled money both from mutual funds that invest in stocks and those that invest in bonds. It’s the first time since 2008 that both asset classes have recorded back-to-back monthly withdrawals, according to a report by Credit Suisse.

Credit Suisse estimates $6.5 billion left equity funds in July as $8.4 billion was pulled from bond funds, citing weekly data from the Investment Company Institute as of Aug. 19. Those outflows were followed up in the first three weeks of August, when investors withdrew $1.6 billion from stocks and $8.1 billion from bonds, said economist Dana Saporta.

“Anytime you see something that hasn’t happened since the last quarter of 2008…