Changes

The TSP offers ten fund options, five of which operate like traditional index [[mutual fund]]s and five are "Lifecycle" (target-date) funds:

The TSP offers ten fund options, five of which operate like traditional index [[mutual fund]]s and five are "Lifecycle" (target-date) funds:

*G (Government) Fund -- invests in special government securities not offered to the general public.  This is the only fund where a positive return on investment is guaranteed as the securities are guaranteed by the "full faith and credit" of the US Government.

*G (Government) Fund -- invests in special government securities not offered to the general public; the return is specified by law as the weighted average yield of Government securities having at least four years until maturity.  This is the only fund where a positive return on investment (though not necessarily enough to keep up with inflation) is guaranteed as the securities are guaranteed by the "full faith and credit" of the US Government.

*C (Common Stock) Fund -- invests in the BlackRock Equity Index Fund, which attempts to match the total return version of the S&P 500.

*C (Common Stock) Fund -- invests in the BlackRock Equity Index Fund, which attempts to match the total return version of the S&P 500.

*F (Fixed Income) Fund -- invests in the BlackRock U.S. Debt Index Fund, which attempts to track the Barclays Capital Aggregate Bond Index.

*F (Fixed Income) Fund -- invests in the BlackRock U.S. Debt Index Fund, which attempts to track the Barclays Capital Aggregate Bond Index.