M&A Time? Health Services Giants Are Having An Enormous Day By: Benzinga via Benzinga June 15, 2015 at 15:23 PM EDT Shares of CIGNA Corporation (NYSE: CI) are surging on Monday afternoon, up $19.80 to $157.12, a gain of nearly 15 percent. The ... Read More >> Related Stocks: Aetna Anthem Inc Cigna Corp Humana Macy's UnitedHealth Group