For example, investors who own their own home can market it, but they will not often consider switching houses as part of changes in their ‘investment portfolio’.

2 Annaa
...рассматривается именно ими самими. А почему оно может ими так рассматриваться?.. Спасибо, эта картинка в любом случае лучше та, которая представилась мне :)

Расширю контекст. Речь идет о нереализуемых/неликвидных ценных бумагах:
There are categories of marketable security that, although the investor might be able to market, he or she will consider them a fixed part of the portfolio. These are considered to be Non-Marketable security. A non-marketable security is not tradable and hence is not liquid in nature. Long-term forces of demand and supply drive the value of such assets. ****For example, investors who own their own home can market it, but they will not often consider switching houses as part of changes in their ‘investment portfolio’.*****