BlackRock MuniYield Investment Fund (NY: MYF )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Dec 31, 2008	4.461	4.593	4.461	4.537	119,331	+0.09(+1.94%)
Dec 30, 2008	4.436	4.563	4.370	4.451	143,302	+0.07(+1.50%)
Dec 29, 2008	4.390	4.446	4.365	4.385	53,918	+0.02(+0.46%)
Dec 26, 2008	4.223	4.410	4.223	4.365	85,245	+0.15(+3.49%)
Dec 24, 2008	4.157	4.481	4.157	4.218	81,890	+0.07(+1.71%)
Dec 23, 2008	4.182	4.309	4.096	4.147	262,307	-0.04(-0.85%)
Dec 22, 2008	4.208	4.410	4.177	4.182	115,629	+0.01(+0.12%)
Dec 19, 2008	4.020	4.208	4.020	4.177	119,998	+0.10(+2.36%)
Dec 18, 2008	3.924	4.177	3.924	4.081	138,059	+0.13(+3.21%)
Dec 17, 2008	3.756	3.954	3.756	3.954	192,144	+0.15(+4.00%)
Dec 16, 2008	3.817	3.863	3.751	3.802	108,255	-0.02(-0.40%)
Dec 15, 2008	3.858	3.858	3.817	3.817	139,957	-0.04(-1.05%)
Dec 12, 2008	3.853	3.924	3.843	3.858	120,120	-0.06(-1.43%)
Dec 11, 2008	3.959	3.959	3.863	3.914	234,888	-0.07(-1.66%)
Dec 10, 2008	4.076	4.228	3.964	3.980	93,252	-0.15(-3.56%)
Dec 09, 2008	4.066	4.132	4.025	4.127	43,627	+0.04(+0.99%)
Dec 08, 2008	4.056	4.157	4.040	4.086	122,308	+0.03(+0.62%)
Dec 05, 2008	4.187	4.187	4.045	4.061	48,707	-0.12(-2.91%)
Dec 04, 2008	4.289	4.289	4.132	4.182	41,688	-0.10(-2.25%)
Dec 03, 2008	4.299	4.345	4.248	4.279	123,687	-0.02(-0.47%)
Dec 02, 2008	4.329	4.360	4.299	4.299	84,059	-0.06(-1.40%)