Motorola Upgraded, Thornburg Mortgage Downgraded

Stocks are surging after the Federal Reserve lowered the discount rate by 50 basis points and injected more cash into the banking system to help ease the credit crisis.

Today's Upgrades:

Three stocks was upgraded to PowerRatings (for Investors) of 9. The top rated stocks have historically done a superior job of identifying stocks which have risen in value over the next 12 months. Among today's list of upgrades is:

Motorola (MOT@MOT | Quote | Chart | News | PowerRating) has a PowerRating (for Investors) of 9, upgraded from 8. The company builds, markets and sells products, services and applications that make simple and seamless connections to people, information and entertainment possible through broadband, embedded systems and wireless networks.

Click here for all of today's upgrades.

Today's Downgrades:

Four stocks were downgraded to an unattractive PowerRating (for Investors) today. Stocks with low PowerRatings (for Investors) have tended to underperform the market over the next 12 months. Among today's list of downgrades is:

Thornburg Mortgage (TMA@TMA | Quote | Chart | News | PowerRating) was downgraded to 2, from 3. The company is a single-family residential mortgage lender that originates, acquires and retains investments in ARM Assets, thereby providing capital to the single-family residential housing market.

The company, which has been suffering from the housing and credit market problems, recently rescheduled its dividend payment date.

Click here for all of today's downgrades.