Shares of HS fell by 5.24% or $-1.78/share to $32.17. HealthSpring Inc. is trading at a price to book ratio of 1.42. The PEG is 0.74 suggesting that the shares are trading at an excellent value relative to firm's growth rate. The price to sales ratio came in at 0.52. Hence, the firm is extremely cheap relative to its top line sales figures. On average, 935405 shares of HS exchange hands on a given day and today's volume is recorded at 378897. These financial metrics combined make this company seem undervalued. Value investors may have an eye on this one, especially if the stock gets cheaper.