[R-SIG-Finance] Black Litterman question
Brian G. Peterson
brian at braverock.com
Fri Mar 27 02:01:43 CET 2009
Bastian Offermann wrote:
> my question is aimed at the Black-Litterman experts. I am constructing a
> portfolio consisting of various equity indices and express 1 absolute
> view and 1 relative view on another 2 assets.
>
> Additionally, I have to express confidence levels put into each view.
> The higher the level the larger the deviation from its equilibrium
> weight. Thats my question: Does the tilt from equilibrium necessarily
> reach its maximum when my confidence is 100% ?? Or may it reach its
> largest tilt at a lower confidence level? Does not sound intuitive, but
> my calculations just show that (maximum tilt at 99% confidence to be
> specific).
Depending on your constraints, you may reach the maximum tilt much sooner than
100% confidence.
Regards,
- Brian
--
Brian G. Peterson
http://braverock.com/brian/
Ph: 773-459-4973
IM: bgpbraverock
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