Tuesday's Analysts' Upgrades, Downgrades

Change in Ratings

AffymetrixAFFX downgraded at Bear to underperform. Estimates also cut, as the company warned of lower sales. $12 price target.

BlockbusterBBI downgraded at JPMorgan from overweight to neutral. Do not like the proposed Circuit CityCC deal, as synergies will be difficult to realize. Estimates also cut, to reflect management's latest guidance.

Black & DeckerBDK initiated at UBS with a neutral rating and $72 target price. Initiated 2008 EPS estimates of $5.50.

BemisBMS upgraded at Merrill from sell to neutral. Expectations are low, though the company generates solid free cash flow and pays a hefty dividend.

CrocsCROX downgraded at Weisel to market-weight. Company warned of lower sales, and with high fixed costs, margins continue to de-lever.

CSXCSX upgraded at UBS. Short-term rating raised to a buy and reiterated neutral 12-month rating. Raised 2008 EPS rating of $3.97 from $3.95 and price target of $62 from $60.

MascoMAS initiated at UBS with a neutral rating and $20 price target. Initiated 2008 EPS estimates at 90 cents.

Massey EnergyMEE upgraded at JPMorgan from neutral to overweight. Company should benefit from higher metallurgical coal prices through 2009.

Mohawk IndustriesMHK initiated at UBS with a buy rating and a $95 price target. Initiated 2008 EPS estimates of $5.70.

SeaspanSSW initiated at Jefferies with a buy rating, $33 price target and 2008 EPS estimates of $1.28.

Stock Comments/EPS Changes

Affymetrix 2008 EPS estimates lowered at UBS to 31 cents from 42 cents. Reiterated buy rating and $22 price target.

BoeingBA price target lowered at UBS to $75 from $80. Maintains 2008 EPS estimates of $5.93 and sell rating.

WachoviaWB 2008 EPS estimates lowered at UBS to $1.92 from $3.40. Price target lowered to $35 from $39. Maintains buy rating.