Volume Spike Investor

Tractor Supply Co. (Nasdaq: TSCO) shares are up 9 percent to $44 on roughly twice their average daily volume as of 10:45 a.m. Eastern, after the company guided second-quarter and fiscal-year profits higher. The company now sees Q2 earnings in a range of $1.48 to $1.50 a share, vs. analyst expectations of $1.25 a share. The EPS upside came from better-than-expected gross margins, possibly due to lower shipping costs.  — Mike Tarsala