Week's Winners and Losers: Undead Star, Dead Video Service

There were plenty of winners and losers this week, with the market leader in single-serve coffee receiving a timely analyst upgrade and a stumbling video streaming service shutting down. Here's a rundown of the week's smartest moves and biggest blunders.

Tesla (TSLA) -- Winner

Tesla CEO Elon Musk had tweeted about his company making some big announcements on Thursday night, and reality lived up to the hype. The electric car maker introduced the all-wheel-drive Model D, complete with a dual-motor system that will have a longer driving range and allows the car to accelerate faster.

The company is also taking us closer to the era of self-driving cars, as the new vehicle offers driver-assist features including self-adjusting cruise control that adheres to changing speed limits and the ability to change lanes on its own, thanks to a dozen sensors.

SodaStream (SODA) -- Loser

It seemed as if SodaStream shareholders were about to be put out of their misery when the stock was halted ahead of Tuesday morning's open for news pending. There had been plenty of buyout rumors in recent weeks. Sources were telling at least three international business publications that SodaStream was in talks to be snapped up.

Well, there was no buyout pop. The stock went the other way after SodaStream revealed that its sales and operating profit would fall well short of earlier expectations. The company behind the namesake machine that turns flat water into carbonated beverages blames the slowdown of sales of its soda makers and flavored syrups in the U.S.

Dracula-- Winner

"Dracula Untold" opened in theaters on Friday, and Comcast's (CMCSK) Universal Studios is promoting its new horror flick in a clever way. "Dracula Untold" is a themed haunted house attraction for Halloween Horror Night at Universal's theme parks in California and Florida.

Redbox Instant -- Loser

Outerwall (OUTR) had been promising a digital strategy since 2010, so why did it take nearly three years for Redbox Instant to roll out? Why did it get nixed on Tuesday after only a little more than a year of public availability?

Redbox parent Outerwall teamed up with Verizon (VZ) to introduce the service that combined a streaming catalog with nightly Redbox kiosk rentals. It never really stood a chance. It launched too late. The selection was lousy. Tethering a streaming service to physical rentals is a strategy that didn't end well for Blockbuster. It was easy to see the end of Redbox Instant coming from the start, and Tuesday it became official.

Keurig Green Mountain (GMCR) -- Winner

Keurig Green Mountain was a "loser" in last week's column after its Keurig 2.0 brewer came under legal fire. It turned things around this week when Goldman Sachs (GS) initiated coverage of the stock with a bullish buy rating and a $166 price target.

Goldman Sachs feels that Keurig Green Mountain has transformed itself from a disruptor in the single-serve market to a java-brewing heavyweight with a "multi-layered, product cycle-driven growth story" that warrants attention.

Motley Fool contributor Rick Munarriz owns shares of Keurig Green Mountain and SodaStream. The Motley Fool recommends Keurig Green Mountain, SodaStream, and Tesla Motors. The Motley Fool owns shares of SodaStream and Tesla Motors. Try any of our Foolish newsletter services free for 30 days.To read about our favorite high-yielding dividend stocks for any investor, check out our free report.