Top Analyst Upgrades & Downgrades (ALU, AIG, DK, GRPN, HD, ING, K, MDVN, PIR, DGX, TOL, VE, PAY, WES, YRCW)

These are some of Monday’s top analyst upgrades, downgrades, and initiations seen from Wall Street research calls.

Alcatel-Lucent SA (NYSE: ALU) Cut to Sell at Citigroup; Cut estimates and target at Argus.
American International Group Inc. (NYSE: AIG) named as Bear of the Day at Zacks.
Delek US Holdings, Inc. (NYSE: DK) named value stock of the day at Zacks.
Groupon, Inc. (NASDAQ: GRPN) Started as Buy at Benchmark.
The Home Depot Inc. (NYSE: HD) Raised to Outperform at RBC.
ING Groep NV (NYSE: ING) Cut to Hold at Soc-Gen.
Kellogg Co. (NYSE: K) Cut to Market Perform at William Blair.
Medivation, Inc. (NASDAQ: MDVN) Raised to Outperform as Bull of the Day at Zacks.
Pier 1 Imports, Inc. (NYSE: PIR) Started as Outperform at Wells Fargo.
Quest Diagnostics Inc. (NYSE: DGX) Raised to Outperform at RBC.
Toll Brothers Inc. (NYSE: TOL) Raised to Buy at Citigroup.
Veolia Environnement S.A. (NYSE: VE) Cut to Underweight at JPMorgan.
VeriFone Systems, Inc (NYSE: PAY) Started as Buy at Citigroup.
Western Gas Partners. L.P. (NYSE: WES) Raised to Outperform at Credit Suisse.
YRC Worldwide. Inc. (NASDAQ: YRCW) Maintained Underperform and target cut to $0.05 at Credit Suisse; maintained neutral with losing share at Zacks.

See the top analyst upgrades and downgrades of the prior week here.