3M Upgraded, Micrel Downgraded

Today's Upgrades:

Three stocks were upgraded to PowerRatings (for Investors) of 10, the highest rating. 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:

3M Company (NYSE: - ) has a PowerRating (for Investors) of 10, upgraded from 9. 3M is a diversified technology company with a global presence in the following businesses: industrial and transportation; health care; display and graphics; consumer and office; safety, security and protection services; and electro and communications.

Today's Downgrades:

One stock was 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:

Micrel (NasdaqGS: - ) was downgraded to 3, downgraded from 4. The company designs, develops, manufactures and markets a range of analog power ICs, mixed-signal and digital ICs.

PowerRatings (for Investors) are courtesy of PowerRatings.net.