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alpha quiz

If a portfolio had an alpha of negative10 bps, then the portfolio:

A) earned 10 bps less than the market.

B) had less risk than the market.

C) earned 10 bps less than the market on a risk-adjusted basis.



Edited 1 time(s). Last edit at Tuesday, May 24, 2011 at 04:05PM by june2009.

Bad question...but I see where they're going with it. Alpha is risk-adjusted excess return. In the case of Jensen's alpha, by using a specific benchmark instead of the proverbial global market, theoretically it's supposed to adjust for risk, but it depends on how you look at it.

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alpha isnt excess return its unexplained excess return

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In theory alpha should always be on a risk-adjusted returns basis.

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C
Alpha is not an absolute return, it is a relative comparison.

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so whats the answer and why

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A.



Edited 1 time(s). Last edit at Tuesday, May 24, 2011 at 04:39PM by Oal29.

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I always thought ALPHA was excess return over some normal benchmark w/o any risk adjustment.

My portfolio earned 10%, my properly specificied benchmark earned 8% = 2% alpha. No matter the risk I undertook to get there. Is alpha not = excess return???

Will give answer in a few.

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A all the way

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I think the answer is A. When you look at alpha it is the additional return over the normal benchmark.

The answer would be C if you were computing Jensen's alpha, which adjusts for the risk of the portfolio for the return of the market.

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