Before you pull your cash out of your money market fund, you need to understand what you own. There is a big difference between money market mutual funds and the money market deposit accounts at a bank (and banks sometimes sell both).
Money market funds are essentially mutual funds that invest in securities that, until this week, were deemed relatively low risk. Those include government securities, certificates of deposit, asset-backed commercial paper and other highly liquid securities.
The Primary Fund got in trouble because some of its investments were in Lehman Brothers’ debt. To stop what is in essence a run on the fund, the Primary Fund has stopped all redemptions for up to seven days.
A money market deposit account, on the other hand, is entirely different. It is an interest-bearing bank account that is insured — up to $100,000 per account and up to $250,000 for some retirement accounts — by the Federal Deposit Insurance Corporation. Joint accounts are insured for $100,000 per account holder.
If you had been putting your money into a money market account because you wanted to avoid all risk, then you should consider the money market deposit accounts and other accounts insured by the F.D.I.C., like certificates of deposit and regular checking and savings accounts.