From thestreet.com:

We've downgraded financial holding company BOK Financial(BOKF Quote - Cramer on BOKF - Stock Picks) from buy to hold. Strengths include its expanding profit margins and good cash flow from operations. However, we also find weaknesses including a decline in the stock price during the past year, disappointing return on equity and feeble growth in the company's earnings per share.

BOK's gross profit margin of 61.7% is rather high, having increased since the same quarter last year, and it's net profit margin of 14.3% outperforms the industry average. Net operating cash flow rose 32.8% to $137.8 million since the year-ago quarter, though BOK is still growing at a significantly lower rate than the industry average of 117.5%. Revenue dropped 3.4%, underperforming the industry average of 8.3%, and return on equity decreased slightly, implying a minor weakness in the organization.
Shares are down 26.1% on the year, but don't assume that the stock can now be tagged as cheap and attractive. Based on its current price in relation to its earnings, BOK is still more expensive than most of the other companies in its industry.