
Centene fell about 1.4% to close at $75.34 in New York on Wednesday, giving the St. Louis-based company a market value of about $44 billion. Cigna fell less than 0.3% to close at $234.02, giving the Bloomfield, Connecticut-based company a market value of about $77 billion. After the close of regular trading, Centene spiked and then held onto gains of more than 4%, while Cigna fell as much as 3%.