BlackRock MuniYield Investment Fund (NY: MYF )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Oct 31, 2007	6.479	6.524	6.479	6.519	80,481	+0.01(+0.16%)
Oct 30, 2007	6.519	6.550	6.509	6.509	17,950	-0.02(-0.31%)
Oct 29, 2007	6.565	6.590	6.529	6.529	31,364	-0.04(-0.54%)
Oct 26, 2007	6.595	6.595	6.565	6.565	7,693	-0.03(-0.48%)
Oct 25, 2007	6.565	6.596	6.555	6.596	14,597	+0.01(+0.17%)
Oct 24, 2007	6.575	6.595	6.560	6.585	35,309	+0.01(+0.15%)
Oct 23, 2007	6.600	6.616	6.575	6.575	14,597	-0.04(-0.61%)
Oct 22, 2007	6.656	6.656	6.570	6.616	31,166	-0.01(-0.08%)
Oct 19, 2007	6.641	6.643	6.621	6.621	14,399	-0.02(-0.31%)
Oct 18, 2007	6.631	6.651	6.621	6.641	18,147	+0.02(+0.23%)
Oct 17, 2007	6.621	6.626	6.600	6.626	14,991	+0.03(+0.38%)
Oct 16, 2007	6.621	6.641	6.570	6.600	28,602	-0.03(-0.47%)
Oct 15, 2007	6.676	6.676	6.606	6.632	32,547	-0.06(-0.88%)
Oct 12, 2007	6.671	6.712	6.651	6.690	68,646	+0.02(+0.28%)
Oct 11, 2007	6.707	6.717	6.651	6.671	64,898	-0.07(-0.98%)
Oct 10, 2007	6.722	6.742	6.666	6.737	17,358	+0.02(+0.23%)
Oct 09, 2007	6.661	6.722	6.661	6.722	69,237	+0.07(+1.07%)
Oct 08, 2007	6.717	6.717	6.631	6.651	27,813	-0.06(-0.91%)
Oct 05, 2007	6.722	6.727	6.641	6.712	22,487	-0.03(-0.45%)
Oct 04, 2007	6.717	6.742	6.682	6.742	27,221	+0.01(+0.15%)
Oct 03, 2007	6.727	6.732	6.712	6.732	19,331	+0.02(+0.23%)
Oct 02, 2007	6.692	6.727	6.666	6.717	64,898	+0.03(+0.38%)