DA Davidson analyst Peter Winter raised the firm's price target on BOK Financial to $139 from $132 and keeps a Neutral rating on the shares after its Q1 earnings beat. The company's Q1 was highlighted by solid loan growth, diversified fee income growth, well-controlled expenses, and excellent credit quality, the analyst tells investors in a research note. The firm adds that while margins were down more than expected due to some unusual factors, the outlook is for net interest margin expansion going forward.