Investments

The investment balances at March 31, 2019 and December 31, 2018, consisted of the following:



(in thousands)	March 31, 2019		December 31, 2018
Rabbi trust (associated with the Non-Qualified Deferred Compensation Plan)	$	7,484	$	6,689
Investments in equity securities	25		22
Total	$	7,509	$	6,711

We classify these investments as trading securities and report them at their fair value. For the three months ended March 31, 2019 and 2018, we recorded a net unrealized gain of approximately $727,000 and a net unrealized loss of approximately $44,000, respectively, in other expense, net in the condensed 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 condensed consolidated balance sheets and is adjusted each period for the gains and losses incurred by the investments in the Rabbi Trust.