24/7 Wall St.

Stocks were lower on Friday, another Friday the 13th. The trend that has held for more than two years now is that investors have bought stocks after every sell-off. 24/7 Wall St. reviews dozens of analyst reports each morning to find new investment ideas and new trading ideas for its readers.

Some analyst reports cover stocks to buy, and other analyst reports cover stocks to sell or stocks to avoid. These are this Friday’s top analyst upgrades and downgrades.

Aspen Aerogels Inc. (NYSE: ASPN) was started as Buy with a $10.50 price target (after closing at $7.51) at Citigroup.

Blueknight Energy Partners L.P. (NASDAQ: BKEP) was started as Outperform with a $10 price target (versus a $7.43 close) at RBC Capital Markets.

Bonanza Creek Energy Inc. (NYSE: BCEI) was started as Market Perform with a $25.00 price target (versus a $25.99 close) at Cowen.

Broadcom Corp. (NASDAQ: BRCM) was downgraded to Hold from Buy at Canaccord Genuity.

Cameron International Corp. (NYSE: CAM) was started as Neutral with a $47 price target (versus a $44.47 close) at Citigroup.

Children’s Place Inc. (NASDAQ: PLCE) was downgraded to Neutral from Buy at Citigroup.

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Diageo PLC (NYSE: DEO) was downgraded to Underperform from Neutral at Credit Suisse.

Easterly Government Properties Inc. (NYSE: DEA) was started as Outperform at Raymond James.

Flextronics International Ltd. (NASDAQ: FLEX) was raised to Neutral from Sell with a $12 price target (versus a $11.55 close) at Goldman Sachs.

Intel Corp. (NASDAQ: INTC) was raised to Buy from Hold at Canaccord Genuity.

Mobileye N.V. (NYSE: MBLY) was raised to Buy from Neutral with a $50 price target (versus a $40.40 close) at Goldman Sachs.

PDC Energy Inc. (NASDAQ: PDCE) was started as Outperform at Cowen. Macquarie started this one as Outperform on Tuesday.

Rockwell Collins Inc. (NYSE: COL) was raised to Buy from Hold at Canaccord Genuity.

Sanmina Corp. (NASDAQ: SANM) was raised to Buy from Neutral and the price target was raised to $26 from $23 (versus a $23.44 close) at Goldman Sachs.

Steel Dynamics Inc. (NASDAQ: STLD) was raised to Buy from Neutral at Citigroup.

Vitesse Semiconductor Corp. (NASDAQ: VTSS) was started as Buy at Topeka Capital Markets.

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In case you missed Thursday’s top analyst upgrades and downgrades, they were in Amarin, CONSOL Energy, Garmin, GNC, Hewlett-Packard, Peabody Energy, Windstream and a dozen or so more companies.