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

Some of the biggest gainers among Services stocks include:

Cai International (CAI): CAI stock is up 9.73% today.

Textainer Group Holdings (TGH): TGH stock is up 7.52% today.

Chinacache Hldgs ADR (CCIH): CCIH stock is up 8.28% today.

Datawatch Cp (DWCH): DWCH stock is up 5.98% today.

Everyday Health Inc (EVDY): EVDY stock is up 5.78% today.

Keyw Holding Corp (KEYW): KEYW stock is up 5.31% today.

Square (SQ): SQ stock is up 4.32% today.

3D Systems Corp (DDD): DDD stock is up 3.86% today.

Truecar Inc Cmn (TRUE): TRUE stock is up 3.95% today.

Castlight Health Inc (CSLT): CSLT stock is up 3.54% today.

Some of the biggest losers among Services stocks include:

Rollins Inc (ROL): ROL stock is down 5.01% today.

Park City Group Cmn (PCYG): PCYG stock is down 5.82% today.

Adcare Health Systems Inc (ADK): ADK stock is down 4.35% today.

Ascent Capital Group (ASCMA): ASCMA stock is down 3.45% today.

The9 Limited (NCTY): NCTY stock is down 4.08% today.

Moneygram Intl Cmn (MGI): MGI stock is down 3.46% today.

Digimarc Corporation (DMRC): DMRC stock is down 1.79% today.

GSE Systems (GVP): GVP stock is down 4.79% today.

Bitauto Holdings Ltd (BITA): BITA stock is down 3.39% today.

Regis Corp (RGS): RGS stock is down 3.44% 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.