If that was the way they made investment decisions, then they would probably never have become accredited investors in the first place.

As a rule, poor people tend to make investment decisions based on a comparison of the current price versus the price at some point in the past, the date when they bought in.  If the price has gone down since they bought something, they tend to hold and wait for the price to go back up.  If it does finally start going up, they tend to sell, and feel happy if they managed to break even.

Most rich people do the exact opposite.  They make investment decisions based on what they predict the price will do in the future.  If an investment has done poorly, and they see no reason to believe that it is likely to turn around, they tend to "trim the dogs."  But when an investment starts rising, if they believe it will continue to rise, they will hold.

As a result, poor people tend to hold bad investments and sell good ones, while rich do the exact opposite, which explains why they are rich. 

So the question is not whether they are up or down, but whether they still believe the potential upside is greater than the potential downside.