The following stocks were moving the Services sector today.

Some of the biggest gainers among Services stocks include:

Weight Watchers International Inc (WTW): WTW stock is up 3.04% today.

Webmd Health Corp (WBMD): WBMD stock is up 2.74% today.

Gigamedia Ltd (GIGM): GIGM stock is up 0.64% today.

Ziopharm Oncology Inc (ZIOP): ZIOP stock is up 1.63% today.

Oncothyreon Inc (ONTY): ONTY stock is up 0.49% today.

Sunstone Hotel Investors (SHO): SHO stock is up 1.82% today.

The Rubicon Project Inc (RUBI): RUBI stock is up 3.25% today.

Portfolio Recovery Associates (PRAA): PRAA stock is up 1.23% today.

YY Inc (YY): YY stock is up 1.76% today.

Exact Sciences Corp (EXAS): EXAS stock is up 0.44% today.

Some of the biggest losers among Services stocks include:

Connecture Inc (CNXR): CNXR stock is down 1.74% today.

Egain Comm Corp (EGAN): EGAN stock is down 1.72% today.

Tiger Media Inc (IDI): IDI stock is down 4.63% today.

Psychemedics Corp (PMD): PMD stock is up 5.35% today.

3D Systems Corp (DDD): DDD stock is down 4.58% today.

American Reprographics Company (ARC): ARC stock is down 1.18% today.

Rocket Fuel Inc (FUEL): FUEL stock is down 2.31% today.

Command Security Corp (MOC): MOC stock is down 2.99% today.

Newtek Business Services Inc (NEWT): NEWT stock is down 1.99% today.

Digimarc Corp (DMRC): DMRC stock is down 1.85% today.

For more information on the best stocks to buy right now, check out the latest commentary on InvestorPlace.com.

And for more on the hot stocks moving most on Wall Street right now, check out our archive of daily market movers by sector here.

Editor’s Note: Returns for the fastest-moving stocks listed here are based on share prices 20 minutes prior to publication of this story.