BMO Capital Markets analyst Keith Bachman downgraded Adobe Systems Inc. ADBE, +0.40% shares to market perform from outperform Tuesday, though he noted that his ratings change reflected the results of a broader survey on interest in the company's Creative Cloud suite of software rather than specific concerns about the upcoming quarterly results Adobe is due to report Thursday. "In short, respondents across the board expressed a greater willingness to move away from Adobe Creative Cloud in our August survey compared to our April survey," Bachman wrote.