** Shares of farming equipment retailer Tractor Supply TSCO.O up 5% at $62.50 premarket after Q2 results beat estimates
** Co posts 1.5% rise in comparable store sales in Q2 vs expectations of a 0.54% rise
** Also keeps annual forecast unchanged, helped by its mostly U.S.-sourced products that help it manage tariff uncertainties
** TSCO posts earnings per share of 81 cents vs estimates of 80 cents
** As of last close, TSCO up nearly 12.36% YTD
(Reporting by Anshi Sancheti)
((Anshi.Sancheti@thomsonreuters.com))