Shares of Square Inc. are up 0.8% in premarket trading Monday after Stifel analyst Scott Devitt raised his price target on the stock to $66 from $55. He increased his target after the company announced late last week that its acquisition of website-creation platform Weebly had closed. "We are raising our long-term revenue estimates to reflect the incremental Weebly revenue, upside from strong secular tailwinds in the digital payments space, and Square's growing total addressable market as the company bolsters its omnichannel commerce capabilities and expands in key international markets," Devitt wrote. His $66 target is the second highest among analysts tracked by FactSet. The highest target comes from Cantor Fitzgerald's Joseph Foresi, who increased his price target to $69 from $51 midday Friday. Square shares are up 156% over the past 12 months, while the S&P 500 has gained 12%.