GSR05AR1 - Price/Yield - 1A1

LIBOR_1YR

3.11

CMT_1YR

2.82

Balance

$206,045,000.00

Delay

24

Coupon

4.457

Dated

1/1/2005

SWAPS

Settle

1/31/2005

First Payment

2/25/2005

1YR

3.11

2YR

3.5471

3YR

3.7681

4YR

3.9493

5YR

4.1105

Price	0 CPB	15 CPB	25 CPB	35 CPB	45 CPB
100.40234	4.235	4.161	4.099	4.024	3.930	Yield
100.40234	56	60	64	68	70	Spread
100.43359	4.221	4.145	4.080	4.002	3.904	Yield
100.43359	55	58	63	66	67	Spread
100.46484	4.208	4.129	4.062	3.980	3.879	Yield
100.46484	54	56	61	64	64	Spread
100.49609	4.195	4.113	4.043	3.959	3.853	Yield
100.49609	52	55	59	62	62	Spread
100.52734	4.182	4.097	4.025	3.937	3.828	Yield
100.52734	51	53	57	60	59	Spread
100.55859	4.169	4.081	4.006	3.916	3.802	Yield
100.55859	50	52	55	58	57	Spread
100.58984	4.156	4.065	3.988	3.894	3.777	Yield
100.58984	48	50	53	55	54	Spread
100.62109	4.143	4.049	3.969	3.873	3.751	Yield
100.62109	47	48	51	53	52	Spread
100.65234	4.130	4.033	3.951	3.851	3.726	Yield
100.65234	46	47	50	51	49	Spread
100.68359	4.117	4.017	3.933	3.830	3.701	Yield
100.68359	44	45	48	49	47	Spread
100.71484	4.104	4.002	3.914	3.808	3.675	Yield
100.71484	43	44	46	47	44	Spread
100.74609	4.091	3.986	3.896	3.787	3.650	Yield
100.74609	42	42	44	45	42	Spread
100.77734	4.078	3.970	3.877	3.765	3.625	Yield
100.77734	41	40	42	43	39	Spread
100.80859	4.065	3.954	3.859	3.744	3.599	Yield
100.80859	39	39	40	40	36	Spread
100.83984	4.052	3.938	3.840	3.722	3.574	Yield
100.83984	38	37	39	38	34	Spread
100.87109	4.039	3.922	3.822	3.701	3.549	Yield
100.87109	37	36	37	36	31	Spread
100.90234	4.026	3.906	3.804	3.679	3.523	Yield
100.90234	35	34	35	34	29	Spread
100.93359	4.013	3.890	3.785	3.658	3.498	Yield
100.93359	34	33	33	32	26	Spread
100.96484	4.000	3.874	3.767	3.636	3.473	Yield
100.96484	33	31	31	30	24	Spread
100.99609	3.988	3.858	3.749	3.615	3.447	Yield
100.99609	32	29	29	28	21	Spread
101.02734	3.975	3.843	3.730	3.594	3.422	Yield
101.02734	30	28	28	25	19	Spread
WAL	2.57	2.08	1.79	1.53	1.29
Mod Durn	2.38	1.94	1.68	1.44	1.22
Principal Window	Feb05 - Oct07	Feb05 - Oct07	Feb05 - Oct07	Feb05 - Oct07	Feb05 - Oct07

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