The Services sector saw plenty of trading activity today, including the following leaders and losers.

Some of the biggest gainers among Services stocks include:

Castlight Health Inc (CSLT): CSLT stock is up 9.03% today.

Meetme Inc (MEET): MEET stock is up 6.97% today.

Tiger Media Inc (IDI): IDI stock is up 6.4% today.

Cheetah Mobile Inc (CMCM): CMCM stock is up 6.02% today.

Aac Holdings Inc (AAC): AAC stock is up 5.36% today.

Egain Corporation (EGAN): EGAN stock is up 5.22% today.

Varonis Systems Inc (VRNS): VRNS stock is up 5.01% today.

Senomyx Inc (SNMX): SNMX stock is up 4.96% today.

Ziopharm Oncology In (ZIOP): ZIOP stock is up 4.78% today.

Pdf Solutions Inc (PDFS): PDFS stock is up 4.72% today.

Some of the biggest losers among Services stocks include:

Connecture Inc. Cmn (CNXR): CNXR stock is down 7.01% today.

Rosetta Stone (RST): RST stock is down 4.82% today.

Neogenomics Inc (NEO): NEO stock is down 4.65% today.

Acadia Healthcr Co (ACHC): ACHC stock is down 4.43% today.

Qumu Corporation (QUMU): QUMU stock is down 3.81% today.

Ari Network Svcs (ARIS): ARIS stock is down 3.6% today.

Carbonite Inc (CARB): CARB stock is down 3.36% today.

Adcare Health Systems Inc (ADK): ADK stock is down 3.08% today.

China Distance Education Holdings (DL): DL stock is down 3.07% today.

Wowo Ltd Ads (WOWO): WOWO stock is down 2.77% 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.