The latest trading session saw Cigna (CI) ending at $348.78, denoting a +0.78% adjustment from its last day's close. This move outpaced the S&P 500's daily loss of 0.22%. Meanwhile, the Dow gained 0.06%, and the Nasdaq, a tech-heavy index, lost 0.52%.Heading into today, shares of the health insurer had lost 2.19% over the past month, outpacing the Medical sector's loss of 6.22% and lagging the S&P 500's loss of 1.66% in that time.Analysts and investors alike will be keeping a close eye on the performance of ...