Stocks were selling off on Tuesday despite a slightly weaker dollar. Regardless of how a day or week goes, the trend that has prevailed of late is that investors keep buying the dips and sell-offs. That is even with a market that is trading at a premium valuation and with poor earnings growth.

24/7 Wall St. reviews dozens of analyst research reports each morning to find new investing and trading ideas. Some analyst reports cover stocks to buy, while other reports cover stocks to sell or to avoid.

These are the top analyst upgrades, downgrades and initiations seen on Tuesday morning:

CenturyLink Inc. (NYSE: CTL) was downgraded to Market Perform from Outperform at Wells Fargo, and the firm cut the valuation range to $30 to $33 from $43 to $45 (versus a $31.48 prior close), noting that it was a fun run but long-term structural concerns exist. CenturyLink has a consensus analyst target price of $30.14 and a 52-week trading range of $21.94 to $36.20.

International Paper Co. (NYSE: IP) was downgraded to Hold from Buy and the price target was cut to $47 from $51 (versus a $43.46 close) at Jefferies. The firm thinks the fluff pulp area is oversupplied and that the acquisition likely will increase volatility. The consensus price target is $46.47, and the 52-week range is $32.50 to $54.00.

Kroger Co. (NYSE: KR) was initiated with a Neutral rating and assigned a $39 price target (versus a $35.43 close) at SunTrust Robinson Humphrey. The stock has a consensus price target of $43.14 and a 52-week trading range of $27.32 to $42.75.

On Deck Capital Inc. (NYSE: ONDK) was last seen down 33% at $5.50 or so after selling fewer loans and reporting a loss for its first quarter. Tuesday brought on the downgrade brigade: from Outperform to Market Perform with a $6.50 target at FBR, from Buy to Neutral at BTIG and from Buy to Hold at Needham.

Phillips 66 Partners L.P. (NYSE: PSXP) was downgraded to Market Perform from Outperform and the valuation range was cut to $57 to $59 from $64 to $66 (versus a $56.42 close) at Wells Fargo. The cut is on valuation after earnings missed estimates. The consensus target price is $73.11. The 52-week range is $40.00 to $76.95.

United Technologies Corp. (NYSE: UTX) was downgraded to Sector Perform from Outperform with a $108 price target (versus a $104.37 close) at RBC Capital Markets. The stock has a consensus analyst target of $111.72, and it has a 52-week range of $83.39 to $119.66.

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Other key analyst upgrades and downgrades were seen in the following:
Bill Barrett Corp. (NYSE: BBG) was downgraded to Hold from Buy with an $8 price target (versus a $7.79 close) at Deutsche Bank.

Cabot Oil & Gas Corp. (NYSE: COG) was raised to Overweight from Neutral with a $27 price target (versus a $24.24 close) at JPMorgan.

Cavium Networks Inc. (NASDAQ: CAVM) was started with a Buy rating and was assigned a $67 price target (versus a $50.00 close) at Brean Capital.

Community Health Systems Inc. (NYSE: CYH) was downgraded to Underperform from Neutral at Merrill Lynch, while Jefferies maintained its Hold rating but cut the target to $15 from $18 (versus a $15.74 close).

DreamWorks Animation SKG Inc. (NASDAQ: DWA) already has been downgraded due to being acquired. Now it was cut to Hold from Buy at Topeka Capital Markets.

Flexion Therapeutics Inc. (NASDAQ: FLXN) was initiated with an Outperform rating and was assigned a price valuation range of $19 to $21 (versus a $10.63 close) at Wells Fargo.

INC Research Holdings Inc. (NASDAQ: INCR) was downgraded to Neutral from Outperform at Robert W. Baird.

Intrexon Corp. (NYSE: XON) was started as Market Outperform and was assigned a $42 price target (versus a $27.55 close) at JMP Securities.

Midcoast Energy Partners L.P. (NYSE: MEP) was raised to Neutral from Underperform with a $6 price target (versus a $6.95 close) at Credit Suisse.

Qualys Inc. (NASDAQ: QLYS) was downgraded to Neutral from Outperform at Robert W. Baird.

Royal Bank of Scotland Group PLC (NYSE: RBS) was downgraded to Neutral from Buy at UBS.

Superior Energy Services Inc. (NYSE: SPN) was raised to Buy from Neutral at Citigroup.

Visteon Corp. (NYSE: VC) was downgraded to Equal Weight from Overweight with an $85 price target (versus an $80.50 close) at Barclays.

Monday’s top analyst upgrades and downgrades were in Chevron, Colgate-Palmolive, Groupon, Medivation, Microsoft, Seagate Technology and more than a dozen other companies.

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