Fedweek

The TSP’s stock-oriented funds suffered significant losses in May, breaking a string of almost exclusively positive months since the start of the year.

The small company stock S fund dropped 6.99 percent, the large company C fund 6.36 percent and the international stock I fund 4.69 percent. The bond F fund rose 1.77 percent, however, and the government securities G fund rose 0.21 percent. Because of the losses in the stock funds, the lifecycle L funds also all declined: Income, -0.98; 2020, -1.42; 2030, 3.36; 2040, -4.06; 2050, -4.67.

Although the two bond funds have held up well, the G Fund is on track to offer interest rates over 30% lower going forward in the current environment than it did six months ago.
Read more: Why the G Fund Interest Rate is Shrinking