MONTANA BOARD OF INVESTMENTS
STIP YIELD AND DAILY FACTOR CALCULATIONS
		DAILY NET		DAILY		MTD DAILY
DATE		YIELD		FACTOR		FACTOR
05/01/09		0.745981595		0.000019609		0.0000196086
05/02/09		0.745961386		0.000019608		0.0000392170
05/03/09		0.745952870		0.000019608		0.0000588253
05/04/09		0.709658841		0.000018667		0.0000774919
05/05/09		0.738203524		0.000019251		0.0000967430
05/06/09		0.737150838		0.000019220		0.0001159629
05/07/09		0.739549015		0.000019279		0.0001352414
05/08/09		0.741765002		0.000019341		0.0001545828
05/09/09		0.741757283		0.000019341		0.0001739242
05/10/09		0.741749091		0.000019341		0.0001932656
05/11/09		0.741430403		0.000019333		0.0002125990
05/12/09		4.977986397		0.000129662		0.0003422612
05/13/09		0.727115088		0.000018945		0.0003612060
05/14/09		0.724318974		0.000018872		0.0003800781
05/15/09		0.787646585		0.000020540		0.0004006178
05/16/09		0.722188005		0.000018833		0.0004194508
05/17/09		0.722180583		0.000018833		0.0004382838
05/18/09		0.724059451		0.000018880		0.0004571641
05/19/09		0.725505277		0.000018912		0.0004760762
05/20/09		0.706131311		0.000018404		0.0004944807
05/21/09		0.701441980		0.000018287		0.0005127674
05/22/09		0.717153439		0.000018666		0.0005314332
05/23/09		0.717145822		0.000018666		0.0005500991
05/24/09		0.717138371		0.000018666		0.0005687649
05/25/09		0.717130919		0.000018666		0.0005874307
05/26/09		0.716421699		0.000018644		0.0006060742
05/27/09		0.715001507		0.000018609		0.0006246831
05/28/09		0.711045643		0.000018517		0.0006431996
05/29/09		0.712601648		0.000018758		0.0006619573
05/30/09		0.712594210		0.000018758		0.0006807150
05/31/09		0.554910707		0.000014607		0.0006953216
Average		0.8593186
=	Monthly Security Lending Income and Rebate