Summit Global Investments reduced its stakes in five companies and funds in the first quarter, cutting positions in COR, LMT, CME Group, the SPDR Portfolio S&P 600 Small Cap ETF (SPSM), and NiSource by substantial margins (27.4%, 41.8%, 34.1%, 63.3%, and 37.4%, respectively) as it adjusted its portfolio. The moves affected holdings across diversified sectors, with remaining positions valued in the millions of dollars according to the latest SEC filings.