| HIMI Index Changes, March 31, 2010 | |||
| Issue | From | To | Because |
| CM.PR.R | OpRet | Scraps | Volume |
| CL.PR.B | PerpetualPremium | PerpetualDiscount | Price |
| CU.PR.A | PerpetualPremium | PerpetualDiscount | Price |
| CU.PR.B | PerpetualPremium | PerpetualDiscount | Price |
| IAG.PR.E | PerpetualPremium | PerpetualDiscount | Price |
| IGM.PR.B | PerpetualPremium | PerpetualDiscount | Price |
As a result of the migration from PerpetualPremium to PerpetualDiscount due to price declines, the PerpetualPremium index has only two remaining members: GWL.PR.O, a chimerical issue which can sometimes be a straight, sometimes a FixedFloater, depending on where Prime is, and NA.PR.M.
There were the following intra-month changes: