It's time for another round of Yes, No, or Maybe So.  Our analysts explain why they’re bullish on Joy Global and Dendreon, why they’re bearish on SiriusXM and Research in Motion, and why they're conflicted about Ecolab and Krispy Kreme.

European leaders give Greece an ultimatum. Whole Foods serves up earnings.  Chevy celebrates its centennial.  And Ford puts a price on its electric car.

Germany reports its first increase in unemployment in 18 months.   Apple considers issuing a dividend.  And Dunkin' Brands and Open Table serve up quarterly earnings.

What does the escalating crisis in Europe mean for investors?  Should Bank of America’s change of heart give consumers hope?   What does slowing subscriber growth mean for the future of Sirius XM?

Is Yahoo! a trick or a treat?  Is GM a trick or a treat?  In today's special Halloween edition of MarketFoolery,  we tackle those questions and share some additional treats.

European leaders beef up the bailout.  Exxon Mobil and Royal Dutch Shell report big profits on higher oil prices.  And Visa reports higher profits on increased credit and debit card activity.

Shares of Amazon drop after the company reports a decline in quarterly profits.   Shares of Ford slide despite big quarterly sales.  And shares of Tupperware tumble despite strong sales in emerging markets.

Shares of Netflix tumble after the company reports worse-than-expected subscriber loss.  Shares of Under Armour rise on better-than-expected earnings.  And 3M reports weaker-than-expected earnings and warns of weakening consumer demand.

Caterpillar reports big earnings.  Google eyes Yahoo!.    And Mattel makes a big bet on Thomas the Tank Engine.

Microsoft CEO Steve Balmer shares his thoughts on Google.  eBay and Nokia report earnings.  And markets respond to the events in Libya.