thomas weisel

Thomas Weisel and other heavyweight bankers and investors from the dot-com heyday are now assessing opportunities among the social media start-ups.

Digital storage company Nexsan Corp. postponed its $55 million initial public offering, according to its underwriter Thomas Weisel Friday, because of "market conditions."

UPGRADES UBS upgrades Dell (NASDAQ: DELL) from Neutral to Buy.

Lazard Capital upgrades Marvell Technology (NASDAQ: MRVL) from Hold to Buy. UBS has upgraded shares of SanDisk (NASDAQ: SNDK) from Sell to Neutral this morning.

Cantor Fitzgerald upgrades Sequenom (NASDAQ: SQNM) from Hold to Buy with a $16 price target. Click Here for more color.

UPGRADES: UBS upgrades F5 Networks (Nasdaq: FFIV) from Sell to Neutral.

Price target increased to $47 from $29. Deutsche Bank upgrades Freeport-McMoRan (NYSE: FCX) to Buy. Price target increased from $72 to $100. Click Here for more color.

Buckingham Research upgrades shares of Lockheed Martin (NYSE: LMT) from Accumulate to Strong Buy.

UPGRADES: Deutsche Bank upgrades Seagate Technology (NYSE: STX) to Buy.

Price target increased to $20. Click here for more color on the upgrade.

Thomas Weisel also upgraded the stock to Overweight, setting a $20 target. Goldman Sachs upgrades CarMax (NYSE: KMX) from Sell to Neutral and raised their price target from $15 to $22.

UPGRADES: Goldman Sachs upgraded 3M Co.

(NYSE: MMM) from Neutral to Buy and raised its price target from $78 to $85, saying a higher valuation is justified because of the attractive early/short-cycle exposure, possible upward revisions to EPS, best balance sheet in coverage group, and the potential for better organic growth this cycle.

UBS upgrades Wendy's (NYSE: WEN) from Neutral to Buy with a $5.50 price target. Barclays upgrades The Gap (NYSE: GPS) from Equalweight to Overweight.

Price target increased from $18 to $21.

UPGRADES: JP Morgan upgrades Evergreen Solar Inc.

(Nasdaq: ESLR) from Underweight to Overweight and raises their price target to $5. Thomas Weisel upgrades EXFO Electro-Optical (Nasdaq: EXFO) from Marketweight to Overweight.

Price target $4.

UPGRADES: Barclays upgrades Yahoo (Nasdaq: YHOO) from Equal-weight to Overweight and raised its price target from $15 to $20. Click here for full color on the upgrade.

Goldman Sachs upgrades United States Steel Corp. (NYSE: X) from Sell to Neutral and raises its price target from $28 to $34.

Credit Suisse upgrades Illinois Tool Works (NYSE: ITW) from Neutral to Outperform.