Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Wells Fargo (WFC) upgraded to Overweight from Equal Weight at Morgan Stanley with analyst Betsy Graseck saying shares are trading at a 11 times Price/Earnings for a 3.5% yield, and is one of the "best values" in the S&P 1500 and the sector. 2. Tech Data (TECD) was upgraded to Buy from Hold at Stifel, to Buy from Underperform at CLSA, and to Buy from Neutral at BofA/Merrill. 3. AMD (AMD) upgraded to Market Perform from Underperform at Bernstein. 4. Diamond Offshore (DO) upgraded to Buy from Hold at Evercore ISI with analyst James West saying he believes the offshore rig market will bottom over the next 6-12 months and notes shares are down approximately 42% from its mid-July peak. 5. BHP Billiton (BHP) upgraded to Outperform from Neutral at Macquarie with analyst Alon Olsha citing an increase in coal/manganese forecasts. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Anglo American (NGLOY) doesn't view BHP's (BHP) proposed $39B takeover bid as attractive, Reuters' Clara Denina, Amy-Jo Crowley and Anousha Sakoui report, citing two sources. According to one source, the offer does not address the complexities of demerging the Anglo American Platinum and Kumba Iron Ore businesses in South Africa. Anglo's board is expected to give a formal response in the coming days. Reference Link

BHP Group (BHP) is weighing a possible acquisition of Anglo American (NGLOY), Bloomberg's Crystal Tse, Dinesh Nair, and Thomas Biesheuvel report, citing people with knowledge of the matter. The company has recently been evaluating the possibility of an offer for Anglo American, the authors note. Reference Link