 CHICAGO, Oct. 13, 2021 GLOBE NEWSWIRE -- SP Plus Corporation NASDAQ: SP today announced that it expects to release third quarter 2021 earnings on Wednesday, October 27, 2021, after the close of market. Later that same day, the Company will host a conference call at 4:00 PM Central Time that can be accessed via webcast at http : ir . sp p lu s .c o m . 