Analyst Upgrades

• Citigroup (C) to outperform from market perform at Bernstein.
• Cubist Pharma (CBST) to outperform from neutral at RW Baird.
• Pentair (PNR) to buy from hold at Citigroup.
• Heritage Financial (HFWA) to outperform from market perform at Keefe Bruyette.
• SL Green Realty (SLG) and Digital Realty (DLR) to market perform from underperform at FBR Capital.
• MGM Resorts (MGM) to neutral from Sell at Janney Capital.
• Ciena (CIEN) to buy from neutral and Olin (OLN) to buy from underperform at BofA/Merrill.
• Mellanox (MLNX) to overweight from equal weight at Barclays.
• ConocoPhillips (COP) and Canadian Natural (CNQ) to overweight from neutral at JPMorgan.
• IDEX (IEX) to outperform from perform at Oppenheimer.
• Taiwan Semiconductor (TSM) to buy from hold at Deutsche Bank.
• Ctrip.com (CTRP) to positive from neutral at Susquehanna.
• Linear Technology (LLTC) and Analog Devices (ADI) to hold from sell at Auriga.
• Quicksilver (KWK) to outperform from market perform at BMO Capital.

Apple's (AAPL) iPad 2 got off to a great start during the first weekend of its launch, selling an estimated 400,000 to 500,000 units. Apple holds a substantial lead in the tablet market over competitors like Research In Motion (RIMM), Motorola Mobility (MMI), Dell (DELL), Samsung and LG Display.

How Much Will Suppliers Benefit from iPad 2 Sales in 2011?

Here we take a look at how much various iPad 2 component suppliers stand to gain from the product's success. We assume that Apple will continue to source iPad 2 components from the same set of suppliers throughout 2011.

Broadcom (BRCM), maker of semiconductors for the communications industry, had a tough time in Tuesday's extended-hours session after the company released its latest earnings report. The stock went down 6% to a quote of $43.55. That was quite the reversal of fortune, as the shares had closed the regular session higher by 2.9%, settling out at $46.39. The 52-week high is $47.39, so the pullback might be considered a bit of a disappointment.

Then again, is a pullback in this name an opportunity? The business made, on an adjusted basis, 75 cents per share in the fourth quarter, according to MarketWatch. This was one penny better than the consensus estimate.

Analyst Upgrades

• Procter & Gamble (PG) upgraded to buy from neutral at Goldman.
• Capital One (COF) upgraded to outperform from market perform at FBR Capital.
• Airgas (ARG) upgraded to outperform from neutral at RW Baird.
• Broadcom (BRCM) upgraded to positive from neutral at Susquehanna.
• Lululemon (LULU) upgraded to hold from underperform at Jefferies.
• DryShips (DRYS) upgraded to outperform from neutral at Credit Suisse.

Analyst Upgrades

• Yingli Green (YGE) to outperform from market perform at Wells Fargo.
• National Semiconductor (NSM) to outperform from market perform at FBR Capital.
• DuPont (DD) to buy from hold at Citigroup.
• Blackboard (BBBB) to overweight from neutral at JPMorgan.
• Kindred Healthcare (KND) to buy from hold at Jefferies.
• Peabody Energy (BTU) to outperform from market perform at BMO Capital.
• Savvis (SVVS) to buy from neutral and InterActiveCorp (IACI) to neutral from underperform at BofA/Merrill.

Analyst Upgrades

• Wells Fargo upgraded Accenture (ACN) to outperform from market perform following the company's Q4 results, citing improved tone and increased visibility. The firm raised its target range for shares to $51 to $53 from $41 to $44.
• Macquarie upgraded FirstMerit (FMER) to outperform from neutral and has a $21 price target on the stock. The firm cites FirstMerit's strong fundamentals and competitive advantage for the upgrade.
• Macquarie transferred coverage on Marshall & Ilsley (MI) with a neutral from an underperform based on improved risk/reward.
• Eaton (ETN) was upgraded to overweight from neutral at JPMorgan.
• HSBC (HBC) was upgraded to conviction buy from buy at Goldman.
• Walgreen (WAG) was upgraded to overweight from equal weight at Morgan Stanley.

The earnings crunch rolls on this coming week, and the analysts surveyed by Thomson Reuters are looking for strong quarterly results from the likes of Avon (AVP), Coinstar (CSTR), Corning (GLW), DuPont (DD), MetLife (MET), Norfolk Southern (NSC), Northrop Grumman (NOC), Royal Dutch Shell (RDS.A) and many others. In fact, Broadcom (BRCM), Chevron (CVX) and Southwest Airlines (LUV) are expected to have doubled their second-quarter earnings per share compared to a year ago.

The three months that ended in June saw Southwest Airlines celebrate the 39th anniversary of its founding, and it also declared a quarterly dividend. Analysts expect the Dallas-based no-frills carrier to report that second-quarter earnings came to 27 cents a share, a 70.4% rise from a year earlier. Revenue for the period is expected to have grown 20.4% to $3.2 billion. So far, analysts predict similar earnings and revenue numbers for the third quarter. But earnings results were better than expected in the past four quarters, beating consensus estimates by as much as 47%.

Short sellers increased their bets against tech stocks for the period ending May 28, according to data from the NYSE and NASDAQ.

The short interest in NYSE-traded tech shares AMD (AMD) and Texas Instruments (TXN) were up sharply. The short interest in AMD was up 19% to 61.6 million shares. Share short in TXN rose 27% to 27.9 million.

Among NASDAQ-traded stocks, the short interest in Intel (INTC) rose 36% to 61.3 million. Shares short in Broadcom (BRCM) were up 41% to 15.9 million. The short interest in Qualcomm (QCOM), Micron (MU), and Seagate (STX) also rose.

Tech shares with falling short interest included Microsoft (MSFT), down 14% to 57 million and Dell (DELL) down 14% to 45.3 million.

Analyst Upgrades

• Bernstein upgraded Corning (GLW) to outperform from market perform based on Gorilla glass prospects and valuation. The firm raised its price target to $22 from $21.
• RBC Capital upgraded Beckman Coulter (BEC) two rating levels to outperform from underperform, citing valuation and customer checks that indicate high retention rates. The firm upped its target for shares to $65 from $55.
• Credit Suisse upgraded Canadian Pacific (CP) to outperform from underperform. The firm expects Canadian Pacific to have stronger-than-average Q2 volume growth, improved productivity and notes leverage to growth in Asia, among other reasons for the upgrade. The firm raised its target to $75 from $59.
• Freeport McMoRan (FRX) was upgraded to overweight from neutral at HSBC.
• Solera (SLH) was upgraded to strong buy from buy at Needham.
• Jefferies upgraded IPC The Hospitalist Co. (IPCM) to buy from hold.

Here are some highlights from this past week's earnings coverage on BloggingStocks:

• Aflac Inc. (AFL) higher Q1 earnings were better than analysts expected, due in part to a stronger yen.
• Automatic Data Processing Inc. (ADP) Q3 EPS were the same as a year ago and revenue inched higher.
• BlackRock Inc. (BLK) higher Q1 earnings fell short of analysts' expectations due to acquisition-related charges.
• Broadcom Corp. (BRCM) posted record revenue in Q1 and swung to a profit from a year-ago loss.
• Burger King Holdings Inc. (BKC) topped Wall Street's Q3 earnings estimate, but same-store sales fell.

There was little to complain about Broadcom's (BRCM) first quarter results. Revenues hit a record of $1.46 billion, up 71% from the same period a year ago. The consensus was for $1.38 billion. Also, Broadcom posted earnings of $210 million, or $0.40 per share, which compares to a loss of $92 million, or $0.19 per share in last year.

On the news, the shares of the company were up 4% to $36.31 in Wednesday morning trading.