CONVEXITY is the price change that occurs for a bond not accounted for or predicted by modified dU1"ation. Convexity explains why price change estimates using modified duration increase in error as the yield changes, generally by more than 100 basis points. Bonds with positive (negative) convexity have increased (decreased) duration as interest rates fall (rise). Bonds with positive convexity, such as those with put options, have returns higher than those predicted by duration alone. Mortgage-backed securities and callable bonds generally have negative convexity, which means that the price increase predicted by duration for a steep rate decline is too high.
NATURAL ACCOUNTS in the Chart of Accounts are user defined accounts for the activities associated with the accounting entity that capture data at the transaction level. Natural accounts exist for a range of Assets, Liabilities, Equity accounts, Revenues, and Expenses.
MANAGEMENT EXPENSE is the management fee deducted from a funds average net assets to pay an advisor or sub-advisor. This fee is normally on a sliding scale. As the net assets of the fund increase, the percentage deducted for management fees decreases. A fund can also have a fixed rate or flat fee to compensate the advisor.
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