Dupage Policy Journal

After projecting its investments would grow by 6.5 percent, the Oak Brook Police Pension Fund lost 6.8 percent on its investments in 2018, according to data reported to the Illinois Department of Insurance Pension Division.

The DOI biennial report detailing the health of each of the pension funds shows the Oak Brook Police Pension Fund's had $35,054,027 in investment assets last year. It paid $74,705 in investment expenses and lost $2,309,309 in investment income.

Pension funds and retirement systems set actuarial assumptions to project returns on investments to cover obligations to pensioners. When they fall short, the difference has to be made up from other sources – primarily from taxpayers and member contributions.

	2014	2015	2016	2017	2018
Investment assets	$32,851,088	$31,739,250	$33,432,152	$37,665,858	$35,054,027
Investment expenses	$74,889	$83,213	$81,459	$71,530	$74,705
Investment income	$1,154,770	-$341,174	$2,267,532	$4,522,101	-$2,309,309
Net investment income to assets	3.3	-1.3	6.5	11.8	-6.8
Actuarial assumption	6.8	6.8	6.8	6.5	6.5