Var(Rp) for > 2 assets.

WorldSeriesX

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Var(Rp) for > 2 assets.

Does anyone know if this was tested on the exams in previous years. If so, is it necessary to compute it?
 
nothing on this in june if i remember.....never hurts to know.
its not that difficult compared to other topics.


my 2 cents
 
There might be some questions with more than 2 assets but a trick to really simplify the math. I recall doing something like that in Schweser.
 
As long as you have the inputs it only takes 10-20 seconds longer for a 3 asset variance vs 2 assets. Its only another w^2*Var and 2*w1*w3*Cov1,3
 
I would have to take off a few points for forgetting the 2*w2*w3*Cov2,3. Oops.
 
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