T. Rowe Price Summit GNMA Fund (PRSUX)
Ticker Symbol:
PRSUX
Fund Status:
Open to new Retail investors  /  Open to subsequent Retail investments
Fund Composition
Asset Allocation
as of 03/31/2013
Domestic Bond 109.1%
Foreign Bonds 0.3%
Domestic Stock 0.0%
Foreign Stock 0.0%
Preferreds 0.0%
Convertibles 0.0%
Options 0.0%
Cash -9.4%
Volatility and Other Measures
as of 04/30/2013
Beta 0.89
0.93
Standard Deviation 1.80
Credit Quality Diversification1
as of 03/31/2013
% of Total Net Assets
AAA 0.3%
A 0.1%
BB 0.0%
B 0.0%
CCC 0.0%
NOT RATED 0.0%
RESERVES -9.4%
US GOVERNMENT AGENCY SECURITIES 108.8%
US Treasury 0.1%
1Sources: Moody's Investors Service; if Moody's does not rate a security, then Standard & Poor's (S&P) is used as a secondary source. When available, T. Rowe Price will use Fitch for securities that are not rated by Moody's or S&P.

U.S. government agency securities are issued or guaranteed by a U.S. government agency, and may include conventional pass-through securities and collateralized mortgage obligations; unlike Treasuries, government agency securities are not issued directly by the U.S. government and are generally unrated but may have credit support from the U.S. Treasury (e.g., FHLMC and FNMA issues) or a direct government guarantee (e.g., GNMA issues). Therefore, this category may include rated and unrated securities.

U.S. Treasury securities are issued by the U.S. Treasury and are backed by the full faith and credit of the U.S. government. The ratings of U.S Treasury securities are derived from the ratings on the U.S. government.
Weighted Avg. Effective Duration
as of 04/30/2013
4.03 years
Weighted Avg. Maturity
as of 05/21/2013
7.49 years
10 Largest Holdings
Represents 43.72 % of Total Net Assets
View Holdings as of:
Coupon % Maturity
Government National Mortgage Assn. 5.000 01/25/2016
Government National Mortgage Assn. 4.500 07/02/2016
Government National Mortgage Assn. 5.000 04/21/2016
Government National Mortgage Assn. 4.500 12/22/2016
Government National Mortgage Assn. 3.000 09/13/2018
Government National Mortgage Assn. 4.000 12/07/2016
Government National Mortgage Assn. 4.500 06/15/2018
Government National Mortgage Assn. 4.500 03/05/2016
Government National Mortgage Assn. 3.500 01/09/2024
Government National Mortgage Assn. 4.000 03/22/2017
As of 03/31/2013 the Summit GNMA Fund had a total of 435 holdings.
Bond Maturity Diversification2
  as of 04/30/2013
% of Total Net Assets
0 - 1 YRS -1.5%
1 - 5 YRS 25.0%
5 - 10 YRS 76.5%
10 + YRS 0.0%
2Total may not equal 100% due to rounding.
Sector Diversification
as of 04/30/2013
% of Total Net Assets
GNMA MORTGAGE-BACKED SECURITIES 101.1%
COLLATERILIZED MORTGAGE OBLIGATION (CMO) 5.4%
INTEREST ONLY/PRINCIPAL ONLY (IO/PO) 1.6%
AGENCY MORTGAGE-BACKED SECURITIES 1.1%
U.S. TREASURIES 0.1%
ASSET-BACKED SECURITIES (ABS) 0.1%
NON-AGENCY MORTGAGE-BACKED SECURITIES 0.0%
OTHER US GOVERNMENT AGENCY SECURITIES 0.0%
CASH EQUIVALENTS -9.5%
See Glossary for additional details on all data elements.