Aspen Technology (AZPN) was upgraded at Keybanc to sector weight from overweight. Twelve-month price target is $50. With ample growth opportunity, analysts believe license revenue could grow by double-digits and free cash flow could grow to 18% to 20% going forward, Keybanc said.

Deere & Co. (DE) was downgraded at J.P. Morgan to underweight from neutral. Twelve-month price target is $84. Analysts recently spent some time in the Midwest meeting various agriculture industry participants including dealers, farmers and industry experts, J.P. Morgan said. Analysts believe it was clear from what they heard that the industry is currently in dire straits with the potential for a liquidity crunch for farmers into 2016, J.P. Morgan said.

J.C. Penney (JCP) was upgraded at BMO Capital Markets to market perform from underperform. Twelve-month price target is $8. Analysts claim growing confidence that management can achieve its 2017 EBITDA target of $1.2 billion, and most importantly, analysts are less concerned about liquidity, BMO Capital Markets said.

Kansas City Southern (KSU) was downgraded at Credit Suisse to neutral from outperform. Twelve-month price target is $101. Despite analysts' longer-term conviction remaining relatively unscathed, they are concerned in the short term regarding KSU's admission that idiosyncratic service issues are impacting its core growth areas -- namely cross-border intermodal and autos -- both of which are tracking in line with or below the industry average, Credit Suisse said.

OCI Partners (OCIP) was downgraded at Citigroup to neutral from buy. Twelve-month price target is $18. Citigroup's analysts think the risk/reward in the units has become less attractive following the company's acknowledgement that proposed IRS regulations could eventually exclude methanol production from being MLP qualifying income, Citigroup said.

Precision Castparts (PCP) was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: PCP Ratings Report.

Thomson Reuters (TRI) was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: TRI Ratings Report.

Wynn Resorts (WYNN) was downgraded at Barclays to equal weight from overweight. Twelve-month price target is $105. Analysts are downgrading WYNN because their new valuation implies 4% downside from current levels, Barclays said. Wynn Macau/Encore is a leader in Macau both in terms of service and quality, but WYNN is also among the casinos with the largest exposure to the VIP market, which is shrinking, Barclays also said.

Yum! Brands (YUM) was upgraded to overweight from neutral at J.P. Morgan. Twelve-month price target is $108. Analysts' feeling is that a spin-off of the company's China business and corresponding levering up of the capital-light franchise business has moved from a "possibility" to a "probability, J.P. Morgan said.

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This article was written by a staff member of TheStreet.