When I retired not so long ago I elected not to rollover my Fidelity 401K. One of the main reasons was the "stable value fund" also refered to as the fixed fund. It has paid a fairly consistent interest rate of around 4.5%, which has seemed a relatively good deal in todays market for fixed income. I've got a good chunk of change there. I'm thinking of transfering even a little more into this fund. Does anyone have opinions or advice on the relative security of these types of funds compared to, perhaps a bond rating or other measure of security. As I understand it, the interest comes from contracts with insurance companies and "other" financial institutes, which seems slightly vague and worth questioning these days.