MOST NOTEWORTHY: RAM Holdings, State Street and Ericsson were today's noteworthy downgrades:

• Banc of America downgraded shares of RAM Holdings (NASDAQ: RAMR) to Neutral from Buy as they believe the company could have increasing loss provisions related to RMBS and CDO exposure over the next several quarters.
  
• State Street (NYSE: STT) was cut to Market Perform from Outperform at Keefe Bruyette on valuation and difficult comparisons in the second half of 2008.
  
• HSBC downgraded Ericsson (NASDAQ: ERIC) to Neutral from Overweight and prefers Nokia (NYSE: NOK) at current levels.

OTHER DOWNGRADES:

• Bear cut Quintana Maritime (NASDAQ: QMAR) to Peer Perform from Outperform.
  
• Goldman downgraded Lukoil (OTC: LUKOY) to Neutral from Buy.
  
• UBS downgraded Aflac (NYSE: AFL) to Neutral from Buy.

Wall Street's equity market offers a solid slate this week - with five IPOs and ten Secondaries on the docket.

Those deals tentatively scheduled to price include:

IPOs:

• Day Undetermined:
  • The Blackstone Group (BX), a 133.3M-share IPO. Morgan Stanley and Citigroup are the lead managers. Filing range: $29.00-$31.00.
• Tuesday
  • Biofuel Energy (BIOF), a 9.5M-share IPO for this ethanol company. JP Morgan Chase, Citigroup, and AG Edwards are the lead managers. Filing range: $16.00-$18.00.
• Wednesday
  • Bway (BWY), an 11.765M-share IPO for this container company. Goldman Sachs and the Bank of America are the lead managers. Filing range: $16.00-$18.00.
  • GeoVera Insurance (GEOV), a 5.99M-share IPO for this residential insurance company. JP Morgan Chase and Merrill Lynch are the lead managers.
• Thursday
  • Aegerion Pharmaceuticals (AEGR), a 5M-share IPO for this cardiovascular medicines company. Lehman Brothers is the lead manager. Filing range: $12.00-$14.00.