CHANGE IN RATINGS

Aquantive

( AQNT) upgraded at Oppenheimer: AQNT was upgraded from Neutral to Buy, Oppenheimer said. $28 price target. Recent pullback presents a buying opportunity, as the company remains leveraged to the strong online advertising market.

Ashland

(ASH) - Get Report

downgraded at JP Morgan: ASH was downgraded from Overweight to Neutral, JP Morgan said. Shares appear fully valued, though the private-market price could be as high as $75. Company will likely pay more special dividends.

American Express

(AXP) - Get Report

downgraded at AG Edwards: AXP was downgraded from Buy to Hold, AG Edwards said. $60 price target. Valuation call, plus the outlook for consumer spending and credit quality is murky.

Centene

(CNC) - Get Report

downgraded at Goldman Sachs: Goldman said it is downgrading CNC to a Sell rating from Neutral based on valuation. Believe price no longer reflects underlying risk of earnings shortfall. Target price at $22.

ConocoPhillips

(COP) - Get Report

upgraded at Deutsche: COP was upgraded from Hold to Buy, Deutsche Bank said. $80 price target. Company will likely pare back capex spending in 2007, and focus its excess cash flow toward buying back stock.

UBS downgrades shares of

Hershey

(HSY) - Get Report

: HSY downgraded to a Neutral rating from Buy, UBS said. Lowers 2007 EPS estimates to $2.66 from $2.71 and drops price target to $56.00 from $60.00.

Kyphon

( KYPH) upgraded at Morgan Stanley: Morgan Stanley upgrades Kyphon from underweight to equalweight after its recent purchase of SFMT.

ManPower

(MAN) - Get Report

upgraded at Morgan Stanley: Morgan Stanley upgrades Manpower to overweight from equalweight, and raises its price target from $65 to $67.

Magna International

(MGA) - Get Report

downgraded at UBS: MGA shares downgraded to Neutral from Buy, UBS said. Drops price target to $85.00 from $88.00 and lowers 2007 EPS estimates to $6.41 from $7.00.

Marathon Oil

(MRO) - Get Report

downgraded at Deutsche: MRO was downgraded from Buy to Hold, Deutsche Bank said. $96 price target. Stock is more expensive than COP, but shares similar characteristics.

Starbucks

(SBUX) - Get Report

upgraded at UBS: UBS upgrades shares of SBUX to a Buy rating from Neutral. Maintains price target at $42.

Sirius Satellite

(SIRI) - Get Report

downgraded at Bear: SIRI was downgraded from Outperform to Underperform, Bear Stearns said. Company warned of lower subscriber growth, and the retail environment could remain soft. OEM customers also losing market share to XMSR.

Schlumberger

(SLB) - Get Report

downgraded at Wachovia: SLB was downgraded to Market Perform, Wachovia said. Company is trading at a 44% premium to its peers and a 20% premium to its average historical valuation.

Station Casinos

(STN) - Get Report

downgraded at Bear: STN was downgraded from Outperform to Peer Perform, Bear Stearns said. Stock is already reflecting an anticipated takeover bid in the mid- to high-$80's.

STOCK COMMENTS / EPS CHANGES

Bank of New York

(BK) - Get Report

numbers raised at UBS: UBS raised numbers at BK. Ups 2007 EPS estimates to $2.49 from $2.42 and lifts price target to $44.00 from $38.00. Reiterates Neutral rating.

CIT

(CIT) - Get Report

price target raised at UBS:CIT price target raised, UBS said. Lifts price target to $62.00 from $57.00. Reiterates Buy rating.

Henry Schein

(HSIC) - Get Report

estimates decreased at Goldman: 2006 estimates on HSIC lowered to $1.99 from $2.10, Goldman said. Company lowered guidance due to lower demand for flu vaccine and shift in expected meningitis vaccine sales to 2007. Maintained Neutral rating and $53 target.

Lubrizol

( LZ) target raised at Jefferies: LZ price target raised, Jefferies said. Ups to $57.00 from $53.00. Reiterated Buy rating.

Psychiatric Solutions

(PSYS)

estimates raised at Jefferies: PSYS EPS estimates raised at Jefferies. 2007 EPS estimates lift to $1.44 from $1.39. Price target remains at $36.00 and reiterates Hold rating.

Sirius Satellite

(SIRI) - Get Report

estimates cut at Goldman:Goldman said it is lowering its 2006 estimates on SIRI to a 79-cent loss from a 52-cent loss after company lowered year-end subscriber target range to 5.9-6 million from 6.3 million previously. Target price decreased to $3.50 from $3.75 and maintained Sell rating.