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

Some of the biggest gainers among Services stocks include:

Jupai Holdings Ltd (JP): JP stock is up 13.07% today.

Adcare Health Systems Inc (ADK): ADK stock is up 18.35% today.

The9 Limited (NCTY): NCTY stock is up 8.06% today.

Code Rebel Cp Cmn (CDRB): CDRB stock is up 7.45% today.

Datalink Corp (DTLK): DTLK stock is up 5.17% today.

Archrock Inc. (AROC): AROC stock is up 5.69% today.

Opower Inc (OPWR): OPWR stock is up 5.11% today.

Twitter Inc (TWTR): TWTR stock is up 3.69% today.

American Reprographics Company (ARC): ARC stock is up 5.29% today.

Yelp Inc (YELP): YELP stock is up 4.33% today.

Some of the biggest losers among Services stocks include:

Verint Systems Inc (VRNT): VRNT stock is down 12.25% today.

Nanoviricides Inc (NNVC): NNVC stock is down 7.27% today.

Netqin Mobile Inc (NQ): NQ stock is down 5.51% today.

Aerocentury Corp (ACY): ACY stock is down 5.78% today.

Genesis Healthcare Inc (GEN): GEN stock is down 2.49% today.

Q A D Inc Cl B (QADB): QADB stock is down 3.13% today.

Mimecast Limited Ord (MIME): MIME stock is down 2.92% today.

Addus Homecare Corpo (ADUS): ADUS stock is down 1.36% today.

Chinacache Hldgs ADR (CCIH): CCIH stock is down 1.64% today.

Instructure Inc (INST): INST stock is down 2.1% 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.