** Shares of Nucor NUE.N marginally up at $140 premarket
** BMO Capital lifts PT to $155 from $145, a premium of 11% to the stock's last close; rating unchanged at "outperform"
** Says co's Q2 EPS guidance raise last month was driven by stronger sheet and plate pricing, along with improved performance at its steel mills segment
** Brokerage adds that co's Q3 outlook is less certain amid softer demand for sheet products and ongoing tariff uncertainty
** Further says co's steel mills segment profitability to increase significantly sequentially on higher-average selling prices at its sheet and plate mills
** 11 of 16 brokerages rate the stock "buy" or higher, 4 "hold" and 1 "sell"; their median PT is $148.21- data compiled by LSEG
** As of last close, stock had risen 19.7% YTD
(Reporting by Apratim Sarkar)
((Apratim.Sarkar@thomsonreuters.com))