INVESTMENTS

The investment balances at December 31, 2017 and 2016, consisted of the following:



	As of December 31,
(in thousands)	2017		2016
Rabbi trust (associated with the Non-Qualified Deferred Compensation Plan)	$	6,734	$	4,881
Investments in equity securities	22		21
Total	$	6,756	$	4,902

We classify these investments as trading securities and report them at their fair value. For the years ended December 31, 2017, 2016 and 2015, we recorded net unrealized gains of $1.0 million, $379,000 and $7,000, respectively, in other income (expense) in the consolidated statements of income related to these investments. For the investment in the Rabbi Trust, we also have recorded an associated liability, which is included in other pension and benefit costs in the consolidated balance sheets and is adjusted each period for the gains and losses incurred by the investments in the Rabbi Trust.