Standard&Poor's Ratings Services revised the outlook to stable from negative and affirmed its 'AA-' underlying rating on Lake Orion Community School District, Mich.'s general obligation (GO) bonds. The outlook revision is based on projected operating surpluses and above-average economic factors. At the same time, Standard&Poor's assigned its 'AA-' enhanced long-term rating, with a positive outlook, and its 'AA-' underlying rating, with a stable outlook, to the district's series 2015B GO refunding bonds and series 2016 GO refunding bonds. Finally, Standard&Poor's affirmed its 'AA-' enhanced long-term rating on the district's existing GO bonds. The 'AA-' enhanced ratings are based on the district's participation in the Michigan School Bond Qualification and Loan program. The district's unlimited-tax