S&P Global Ratings assigned its 'A-' long-term rating to Southern Illinois University Board of Trustees 's approximately $42.3 million series 2025A certificates of participation (COPs), issued for Southern Illinois University (SIU). At the same time, S&P Global Ratings affirmed its ?A-? long-term rating and underlying rating (SPUR) on SIU Board of Trustees' housing and auxiliary facilities system (HAFS) revenue bonds S&P Global Ratings also affirmed its ?A-? long-term rating on SIU's COPs outstanding The outlook is stable. NEW YORK (S&P Global Ratings) April 11, 2025--S&P Global Ratings today took the rating actions listed above. We analyzed the university's environmental, social, and governance (ESG) factors related to its market position and financial performance. Overall, ESG factors are neutral in our analysis.