Are you referring to book value? I've never seen a valuation of stock price based solely on assets. Just using assets doesn't take into account anything owed to creditors. Book value is what stockholders would theoretically receive if assets were liquidated and creditors got paid. They always get paid first.
Please explain further. Building assets is meaningless if debt to assets is too high. In the case of NSAV it's assets are it's holdings. NSAV will need a solid balance sheet, good cash flow, and consistent earnings/profit to push the PPS to .3-.5.
Not saying it can't happen, but they need to show consistency to drive it up there.