S&P Dow Jones Indices LLC, a subsidiary of The McGraw-Hill Companies, Inc. (MHP), said Thursday that S&P MidCap 400 constituent Kansas City Southern (KSU) will replace Dean Foods Co. (DF) in the S&P 500, Dean Foods will replace Kansas City Southern in the S&P MidCap 400, and WhiteWave Foods Co. (WWAV) will replace Quicksilver Resources Inc. (KWK) in the S&P MidCap 400 after the close of trading on May 23.
Dean Foods is spinning off a portion of its remaining equity interest in WhiteWave in a deal expected to be completed on or around that date, pending final approvals. The reduced market capitalization of Dean Foods after the spin-off will make it more representative of the midcap market space.
Quicksilver Resources is ranked 400th in the S&P MidCap 400 and is no longer representative of the midcap market space, S&P said.
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June 05, 2026 16:18 ET A busy week for economic news flow saw a slew of reports being released that reflected the trends in the U.S. labor market. In Europe, economic growth and inflation data gained attention as the European Central Bank and Bank of England head for policy session later in the month. In Asia, the monetary policy session of the Indian central bank was in focus as the country, a major oil importer, reels under the pressures of a weaker rupee and rising inflation.