Amazon ( AMZN) downgraded at Collins Stewart to Hold. Company had a disappointing quarter and lower operating profit guidance. Amazon ( AMZN) target, estimates increased at Barclays to $83 from $76. 2009 and 2010 EPS estimates lifted to $1.75 from $1.70 and to $2.22 from $2.10, respectively. Maintain Equal Weight rating. Amazon ( AMZN) target increased at Bernstein to $90. Margins are growing despite decelerating North American sales. Market Perform rating. Broadcom ( BRCM) downgraded at JMP to Market Underperform. $25 price target. Recovery momentum will likely peak this quarter. Broadcom ( BRCM) target, estimates raised at Barclays to $30 from $24 as 2Q results showed revenue above expectations. 2009 and 2010 ESP estimates lifted to $0.96 from $0.65 and to $1.36 from $1.12, respectively. Maintain Equal Weight rating. Cooper Industries ( CBE) upgraded at Oppenheimer from Perform to Outperform, Oppenheimer said. $39 price target. Earnings are improving and the stock trades at a discount both to its peers and its average historical valuation. Celgene ( CELG) downgraded at Morgan Joseph to Hold. Valuation call, as the company's earnings will likely come in at the low end of guidance. Celgene ( CELG) estimates boosted at Morgan Stanley through 2010. MM-015 will drive significant growth in Revlimid sales and the company should see multiple expansion. Overweight rating and $65 price target. Con-way ( CNW) upgraded at JPMorgan to Overweight from Neutral. Price target raised to $50 from $24. 2009 EPS estimates raised to $1.12 from $0.60. Changyou.com ( CYOU) downgraded at Roth from Buy to Hold. Valuation call, as some growth is already priced in. $40 price target.