Decreasing the number of stocks in a portfolio from 50 to 5 would likely . A. decrease the systematic risk of the portfolio B. decrease the unsystematic (idiosyncratic) risk of the portfolio C. increase the return of the portfolio D. increase the systematic risk of the portfolio E. increase the unsystematic (idiosyncratic) risk of the portfolio

It will increase the risk of unsystematic risk of the portfolio.

Explanation:

Unsystematic hazard can be depicted as the vulnerability inalienable in an organization or industry venture. Sorts of unsystematic hazard remember another contender for the commercial center with the possibility to take a noteworthy piece of the overall industry from the organization put resources into, an administrative change (which could drive down organization deals), a move in the executives, as well as an item review.  

By claiming an assortment of organization stocks across various businesses, just as by possessing different kinds of protections in an assortment of advantage classes, for example, Treasuries and metropolitan protections, financial specialists will be less influenced by single occasions. For instance, a financial specialist, who claimed only carrier stocks, would confront a significant level of unsystematic hazard. She would be defenseless if aircraft industry representatives chose to take to the streets, for instance. This occasion could sink aircraft stock costs, even briefly. Essentially the expectation of this news could be sad for her portfolio.