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19#
发表于 2012-3-24 13:10
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Michael Severino and Jeffery Chalmers are portfolio managers for Parthenon Asset Advisors. Severino and Chalmers both believe that having defined criteria for rebalancing a portfolio provides discipline in their portfolio management process, but they have different opinions on how to go about it. Severino states, “With calendar rebalancing, a portfolio could spend the majority of its existence looking extremely different from the target asset allocation, but trades made to rebalance the portfolio may only have a minor impact on how the portfolio is allocated.” Chalmers replies, “If we use percentage-of-portfolio rebalancing, there may never be a trade placed to rebalance our client portfolios.”
With regard to their statements about rebalancing methods: A)
| Severino is incorrect; Chalmers is correct. |
| B)
| Severino is correct; Chalmers is correct. |
| C)
| Severino is incorrect; Chalmers is incorrect. |
|
Both Severino and Chalmers make correct statements. With calendar rebalancing, the rebalancing process is related to the passage of time rather than the value of the portfolio. In theory, a portfolio that is rebalanced using the calendar rebalancing method could stray considerably from the target asset allocation before the rebalancing date, but move closer to target on the rebalancing date, resulting in minor trades in the portfolio. In the case of percentage-of-portfolio rebalancing, a tolerance band is set for each asset class in the portfolio, and the portfolio is rebalanced when it moves outside of the tolerance band. Under the percentage-of-portfolio method, if the asset classes never stray outside of the tolerance levels, the portfolio will never have to be rebalanced. |
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