Are suspended stocks part of the portfolio current value?
Yes, it would use the last known close x shares own. You would need to create a sell transaction to remove it from portfolio current value.
I would like to suggest the option of setting a suspended counter to zero. Taking the example of EHT, it is clear that it was a giant fraud, and there is little likelihood of recovering any value.
I would prefer to set this stock to zero rather than the last traded price which is now irrelevant. The effect is to distort the real value of the portfolio. Since there are legitimate reasons for suspensions pending announcements, there would need to be a time delay before automatically setting to zero, which is why I think it should be an option instead.
It is also clear that an untradeable asset has zero value as no buyer is available to agree a price.