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

Some of the biggest gainers among Services stocks include:

Red Hat Inc (RHT): RHT stock is up 5.52% today.

Determine Inc. (DTRM): DTRM stock is up 5.02% today.

Xactly Corp (XTLY): XTLY stock is up 2.68% today.

Digimarc Corp (DMRC): DMRC stock is up 0.49% today.

Nobilis Health Corp (HLTH): HLTH stock is down 1.68% today.

The Keyw Holding Corp (KEYW): KEYW stock is up 0.52% today.

Scientific Games Corp (SGMS): SGMS stock is up 2.47% today.

Truecar Inc (TRUE): TRUE stock is up 3.56% today.

The9 Ltd (NCTY): NCTY stock is down 1.37% today.

Five9 Inc (FIVN): FIVN stock is up 1.84% today.

Some of the biggest losers among Services stocks include:

Discovery Communications Inc (DISCB): DISCB stock is down 11.26% today.

Carbonite Inc (CARB): CARB stock is up 0.84% today.

Quinstreet Inc (QNST): QNST stock is down 0.42% today.

Datawatch Corp (DWCH): DWCH stock is down 2.08% today.

Cornerstone Ondemand Inc (CSOD): CSOD stock is down 2.43% today.

Innodata Isogen Inc (INOD): INOD stock is down 1.12% today.

Points International (PCOM): PCOM stock is up 0.8% today.

Tucows Inc (TCX): TCX stock is down 0.42% today.

Cai International (CAI): CAI stock is up 0.65% today.

Applied Dna Sciences (APDN): APDN stock is down 1.98% 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.