Trading risk is divided into two general categories: (1) Systemic risk affects all securities in the same class and is linked to the overall capital - market system and therefore can not be
eliminated by diversification.
The important concept of unsystematic risk is that it is not correlated to market risk and can be nearly
eliminated by diversification.
Systemic Risk Market risk due to price fluctuations which can not be
eliminated by diversification.
Not exact matches
So although the resulting die - offs may not have triggered the original
diversification of birds,
by eliminating many ecological competitors, the extinction provided opportunities for survivors to diversify and spread, Cracraft says.
We believe this not only increases
diversification but also may improve the consistency of returns over time
by eliminating reliance on the results of a single manager.
There's also an academic Modern Portfolio Theory explanation for why you should diversify among risky assets (aka stocks), something like: for a given desired risk / return ratio, it's better to leverage up a diverse portfolio than to use a non-diverse portfolio, because risk that can be
eliminated through
diversification is not compensated
by increased returns.
Portfolio
diversification reduces investment risk
by eliminating such possibilities through investing in assets of different expected returns.