TSP G Fund Forecast
About
By law (5 U.S.C. §8438), the G Fund rate for a month equals the average market yield, on the last business day of the prior month, of all marketable Treasury securities with more than 4 years left to maturity, rounded to the nearest 1/8 percent.
Each business evening this app reads Treasury's daily yield curve at each Treasury note's and bond's remaining maturity, weights by the amount outstanding from the Monthly Statement of the Public Debt, and rounds the result. The proxy is that unrounded average; a boundary is the halfway point where the rounded rate flips to the next eighth.
U.S. Treasury daily par yield curve rates
U.S. Treasury Monthly Statement of the Public Debt (Fiscal Data)
Federal Reserve Bank of St. Louis (FRED), as a backup
TSP published G Fund rates, for the track record
Get the estimate on your iPhone, with optional notifications every business day, when the estimate changes, or at month-end.
Coming soon to the App Store for iPhone