These are some of the top analyst upgrades, downgrades and initiations seen from Wall St. research calls this Tuesday.

AngloGold Ashanti Ltd. (NYSE: AU) started as Outperform at Credit Suisse.

Apple Inc. (NASDAQ: AAPL) is set to sell 10 million iPhones according to Gene Munster of Piper Jaffray.

AutoNation Inc. (NYSE: AN) raised to Outperform as Bull of the Day at Zacks.

Bank of Nova Scotia (NYSE: BNS) started as Neutral at Credit Suisse.

Bristol Myers Squibb Co. (NYSE: BMY) started as Neutral at Credit Suisse and added to Conviction Buy List at Goldman Sachs.

CIGNA Corp. (NYSE: CI) maintained Hold but raised 2012/2013 earnings estimates.

Clean Energy Fuels Corp. (NASDAQ: CLNE) started as Hold at Jefferies.

Comcast Corp. (NASDAQ: CMCSA) started as Buy at Janney.

Corporate Office Properties Trust (NYSE: OFC) raised to Neutral at JPMorgan.

Dunkin’ Brands Group Inc. (NASDAQ: DNKN) reiterated Buy with $38 target at Argus.

Gold Fields Ltd. (NYSE: GFI) started as Neutral at Credit Suisse.

Harmony Gold Mining Co. Ltd. (NYSE: HMY) started as Underperform at Credit Suisse.

Intercontinental Exchange Inc. (NYSE: ICE) reiterated Buy with $155 target at Argus.

Johnson Controls Inc. (NYSE: JCI) named Bear of the Day at Zacks.

Johnson & Johnson (NYSE: JNJ) started as Neutral at Credit Suisse.

Chemical & Mining Co. of Chile Inc. (NYSE: SQM) started as Outperform at Credit Suisse.

Finish Line Inc. (NASDAQ: FINL) reiterated Buy and raised target to $28 at Canaccord Genuity.

Watson Pharmaceuticals Inc. (NYSE: WPI) maintained Buy but removed from the Conviction Buy List at Goldman Sachs.

Yelp Inc. (NYSE: YELP) started as Neutral at Piper Jaffray.

JON C. OGG