BlackRock MuniYield Investment Fund (NY: MYF )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Sep 30, 2009	6.590	6.626	6.550	6.626	175,333	+0.00(+0.00%)
Sep 29, 2009	6.636	6.641	6.616	6.626	160,655	-0.01(-0.15%)
Sep 28, 2009	6.656	6.682	6.636	6.636	34,392	-0.02(-0.30%)
Sep 25, 2009	6.616	6.661	6.600	6.656	83,659	+0.04(+0.61%)
Sep 24, 2009	6.671	6.671	6.575	6.616	130,865	-0.04(-0.61%)
Sep 23, 2009	6.692	6.697	6.626	6.656	78,361	-0.02(-0.35%)
Sep 22, 2009	6.687	6.716	6.666	6.680	53,824	-0.01(-0.18%)
Sep 21, 2009	6.702	6.712	6.687	6.692	67,930	-0.01(-0.08%)
Sep 18, 2009	6.671	6.712	6.671	6.697	59,572	+0.02(+0.23%)
Sep 17, 2009	6.631	6.692	6.631	6.682	111,837	+0.05(+0.76%)
Sep 16, 2009	6.621	6.651	6.606	6.631	64,111	-0.01(-0.08%)
Sep 15, 2009	6.611	6.671	6.595	6.636	137,479	+0.01(+0.08%)
Sep 14, 2009	6.535	6.636	6.535	6.631	114,934	+0.08(+1.24%)
Sep 11, 2009	6.499	6.550	6.459	6.550	183,326	+0.03(+0.39%)
Sep 10, 2009	6.154	6.524	6.139	6.524	272,085	+0.12(+1.90%)
Sep 09, 2009	6.332	6.403	6.332	6.403	36,964	+0.06(+0.88%)
Sep 08, 2009	6.372	6.372	6.332	6.347	26,817	+0.01(+0.16%)
Sep 04, 2009	6.286	6.337	6.286	6.337	25,620	+0.07(+1.05%)
Sep 03, 2009	6.220	6.296	6.220	6.271	47,870	+0.04(+0.57%)
Sep 02, 2009	6.154	6.266	6.154	6.235	130,258	+0.09(+1.40%)