Chime Financial to Join S&P MidCap 400 Following NorthWestern Energy Acquisition
S&P Dow Jones Indices has announced a reconstitution of the S&P MidCap 400 index. Chime Financial Inc. (CHYM) will be added to the index effective prior to the market open on November 18, 2026, representing a shift in the financials sector. This change follows the acquisition of NorthWestern Energy Group Inc. (NWE) by Black Hills Corp. (BKH). Upon completion of the merger, the combined entity will be renamed Bright Horizon Energy Corp. (HZN) and will maintain its position within the S&P MidCap 400 index.
Tickers: $BKH $CHYM $NWE $SPGI
Topics: index rebalancing mergers and acquisitions stock index addition stock index deletion