These are some of the top analyst upgrades, downgrades and initiations seen in Wall St. research calls this Thursday.

Abercrombie & Fitch Co. (NYSE: ANF) raised to Outperform at William Blair ad raised to Buy at Stern Agee.

Apple Inc. (NASDAQ: AAPL) reiterated Outperform with $750 target at Credit Suisse, with near-term risk-reward prices of $520 and $630.

Automatic Data Processing Inc. (NASDAQ: ADP) reiterated Buy with $63 target at Argus.

Baker Hughes Inc. (NYSE: BHI) raised to Buy at CLSA.

Cablevision Systems Corp. (NYSE: CVC) cut to Sell at Goldman Sachs.

Cognizant Technology Solutions Corp. (NASDAQ: CTSH) raised to Outperform at Credit Suisse.

Credit Suisse Group A.G. (NYSE: CS) named value stock of the day at Zacks.

E.I. DuPont de Nemours & Co. (NYSE: DD), or DuPont, named Bear of the Day at Zacks.

Ford Motor Co. (NYSE: F) reiterated Buy with $19 target at Argus.

Global Payments Inc. (NYSE: GPN) started as Outperform at Credit Suisse.

Halliburton Co. (NYSE: HAL) raised to Buy at CLSA.

Harman International Industries Inc. (NYSE: HAR) started as Market Perform at Wells Fargo.

Hologic Inc. (NASDAQ: HOLX) reiterated Buy with $27 target at Argus.

IAMGold Corp. (NYSE: IAG) cut to Sector Perform at CIBC.

MoneyGram International Inc. (NYSE: MGI) cut to Neutral at Credit Suisse.

NetApp Inc. (NASDAQ: NTAP) raised to Outperform at Raymond James.

Paychex Inc. (NASDAQ: PAYX) cut to Neutral at Credit Suisse.

Quanta Services, Inc. (NYSE: PWR) named Bull of the Day at Zacks.

Safe Bulkers, Inc. (NYSE: SB) reiterated Underperform at BofA/ML.

Solazyme Inc. (NASDAQ: SZYM) maintained Buy but lowered target to $10 at Canaccord Genuity.

Staples Inc. (NASDAQ: SPLS) reiterated Buy with $14 target at Argus.

Time Warner Cable Inc. (NYSE: TWC) raised to Overweight at JPMorgan.

Walter Energy Inc. (NYSE: WLT) cut to Underperform at BofA/ML.

Here are the changes made in the Argus Model Portfolios as well. And speaking of model portfolios, Warren Buffett’s Berkshire Hathaway Inc. (NYSE: BRK-B) made a huge number of changes from their equity portfolio holdings.

JON C. OGG