The main reason this one is staying at very low levels is the...

The main reason this one is staying at very low levels is the fact that the source of income is getting tighter, e.g repayments from aviation and shipping companies are slow in coming due to thier individual economic woes. The worry is they may get even slower over the next few months pushing the company into a possible loss this year.
However on the up side the company has a very high per share net book value in relation to current share price. So there is a nice big margin of safety for those that are buying now. Also history has shown the company is well managed with a history of sound profits.