Premarket roundup: Homebuilders, Emerson Electric

NEW YORK (AP)--A Credit Suisse analyst started coverage of the homebuilder sector with an "Overweight" rating Tuesday, saying the industry will likely turn a corner next spring as inventory levels start to drop.

NEW YORK (AP)--A Credit Suisse analyst said shares of Emerson Electric Co. trade at a premium to its peers and downgraded the stock to "Neutral" late Monday.

NEW YORK (AP)--A JPMorgan analyst upgraded shares of Invitrogen Corp. Tuesday, pointing to greater-than-expected possible savings in the company's acquisition of Applied Biosystems, and to decreased risks.

NEW YORK (AP)--Yahoo Inc. has lost its focus on the consumer and its stock will be stagnant until it makes smarter product decisions, an analyst said Tuesday.