MONTANA BOARD OF INVESTMENTS
STIP YIELD AND DAILY FACTOR CALCULATIONS
		DAILY NET		DAILY		MTD DAILY
DATE		YIELD		FACTOR		FACTOR
05/01/08		2.820728161		0.000072019		0.0000720194
05/02/08		2.809826486		0.000071734		0.0001437530
05/03/08		2.809683206		0.000071734		0.0002154866
05/04/08		2.809540633		0.000071734		0.0002872202
05/05/08		2.801175271		0.000071501		0.0003587214
05/06/08		2.806410834		0.000071617		0.0004303381
05/07/08		2.802554695		0.000071490		0.0005018282
05/08/08		2.795153987		0.000071282		0.0005731102
05/09/08		2.798071021		0.000071333		0.0006444431
05/10/08		2.797930914		0.000071333		0.0007157760
05/11/08		2.797791175		0.000071333		0.0007871089
05/12/08		4.864379753		0.000123996		0.0009111044
05/13/08		2.789522033		0.000071074		0.0009821787
05/14/08		2.785830125		0.000070994		0.0010531728
05/15/08		2.783300176		0.000070986		0.0011241590
05/16/08		2.787240710		0.000071113		0.0011952716
05/17/08		2.787099463		0.000071113		0.0012663842
05/18/08		2.786956995		0.000071113		0.0013374969
05/19/08		2.780849415		0.000070972		0.0014084684
05/20/08		2.863835798		0.000073081		0.0014815499
05/21/08		2.774373294		0.000070790		0.0015523404
05/22/08		2.759292795		0.000070441		0.0016227813
05/23/08		2.764372767		0.000070333		0.0016931144
05/24/08		2.764236456		0.000070333		0.0017634475
05/25/08		2.764101638		0.000070333		0.0018337807
05/26/08		2.763966094		0.000070333		0.0019041138
05/27/08		2.742364159		0.000069783		0.0019738971
05/28/08		2.742269505		0.000069856		0.0020437528
05/29/08		2.663923530		0.000068003		0.0021117553
05/30/08		2.650200795		0.000067731		0.0021794865
05/31/08		2.514383587		0.000064259		0.0022437455
Average		2.8381086
=	Monthly Security Lending Income