Beckman Coulter (BEC) and Danaher (DHR) announced that they have entered into a definitive merger agreement under which Danaher will acquire all of Beckman Coulter's outstanding common stock for $83.50 per share in cash. Overall option implied volatility of 24 is below its 26-week average of 30, according to Track Data, suggesting decreasing price movement.

Pride (PDE) stockholders will receive 0.4778 newly issued shares of Ensco (ESV), plus $15.60 in cash for each share of Pride common stock. Pride overall option implied volatility of 40 is below its 26-week average of 43, according to Track Data, suggesting decreasing price movement.

Options Update is by Stock Specialist Paul Foster of theflyonthewall.com.

Among all the negative economic data that came out last week was a positive surprise: retail sales were higher in January. A fluke or a glimmer at the end of the tunnel? That may depend on whether we see any positive surprises arising from items on this week's economic calendar:

• Consumer Analyst Group of New York Conference: Monday through Friday
• NY Empire Manufacturing Index (Feb. 2009): Tuesday, 8:30 AM
• NAHB Housing Market Index (Feb. 2009): Tuesday, 1:00 PM
• Fed's Bullard speaks before National Association of Business Economists: Tuesday, 1:00 PM
• Housing starts (Jan. 2009): Wednesday, 8:30 AM
• Fed's Pianalto speaks before Commercial Developers Power Breakfast: Wednesday, 9:00 AM
• Industrial production (Jan. 2009): Wednesday, 9:15 AM
• Fed's Bernanke speaks before National Press Club Luncheon: Wednesday, 12:30 PM

MOST NOTEWORTHY: First Solar, Pride International and EnerSys were today's noteworthy downgrades:

• Friedman Billings downgraded First Solar (NASDAQ: FSLR) to Underperform from Market Perform citing margin risk concerns, as the company aggressively pursues utility-scale projects in the US. The firm said risks are not reflected in share valuation near $300 and could be a source of disappointment but could also lead to downside EPS risk.
  
• Wachovia said Pride International (NYSE: PDE) has the least potential EPS upside vs. peers given the company has contracted the highest percentage of its floater days into 2012E. Additionally, the firm views a takeout by Seadrill as unlikely. Shares were cut to Underperform from Market Perform.
  
• Merriman downgraded shares of EnerSys (NYSE: ENS) to Neutral from Buy as they believe the strong Q4 results were driven by a one-time benefit from lead procurement mechanics and that data does not support the company's sustained margin expansion story.

OTHER DOWNGRADES:

• Citigroup lowered Intuit (NASDAQ: INTU) to Hold from Buy.
  
• UBS downgraded Nucor (NYSE: NUE) to Neutral from Buy.
  
• Smart Modular (NASDAQ: SMOD) was downgraded at Oppenheimer to Perform from Outperform.
  
• The Airlines Sector was cut by Soleil to Neutral from Outperform.

MOST NOTEWORTHY: MedicNova, Transocean and Lennox were today's noteworthy initiations:

• Rodman & Renshaw is positive on MedicNova's (NASDAQ:MNOV) two primary products in development: MN-221, for the treatment of severe asthma and MN-166, an oral treatment for multiple sclerosis. The firm is also positive on MNOV's valuation; shares were initiated with an Outperform rating and $9 target.
  
• Transocean (NYSE:RIG) is UBS's Top Pick as they believe it is the primary beneficiary of rising deepwater dayrates. Shares were assumed with a Buy rating and $201 target.
  
• Suntrust initiated Lennox (NYSE:LII) with a Neutral rating and cites near-term visibility.

OTHER INITIATIONS:

• Dean Foods (NYSE:DF) was initiated with an Outperform rating and $29 target.
  
• Goldman started Parker-Hannifin (NYSE:PH) with a Neutral rating and $92 target.
  
• UBS assumed Hercules Offshore (NASDAQ:HERO) and Pride International (NYSE:PDE) with Neutral ratings and targets of $35 and $49, respectively.