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

Some of the biggest gainers among Services stocks include:

China Finance Online Co. Ltd (JRJC): JRJC stock is up 37.5% today.

Altisource Portfolio Solutions S.A. (ASPS): ASPS stock is up 2.77% today.

Radnet Inc (RDNT): RDNT stock is up 3.18% today.

Nobilis Health Corp (HLTH): HLTH stock is up 1.39% today.

Hortonworks Inc (HDP): HDP stock is down 0.19% today.

Changyou.Com Ltd (CYOU): CYOU stock is down 1.28% today.

Planet Payment (PLPM): PLPM stock is down 0.37% today.

Amaya Inc (AYA): AYA stock is up 2.13% today.

Fleetmatics Group Plc (FLTX): FLTX stock is up 1.8% today.

Amedisys Inc (AMED): AMED stock is up 0.22% today.

Some of the biggest losers among Services stocks include:

Mindbody Inc (MB): MB stock is up 1.51% today.

Concord Medical Services (CCM): CCM stock is up 3.92% today.

Netscout Systems (NTCT): NTCT stock is up 0.54% today.

Connecture Inc (CNXR): CNXR stock is up 1.54% today.

Grubhub Inc (GRUB): GRUB stock is down 4.04% today.

Arrowhead Research Corp (ARWR): ARWR stock is up 0.36% today.

Tucows Inc (TCX): TCX stock is up 0.51% today.

Constant Contact (CTCT): CTCT stock is down 1.2% today.

Zendesk Inc (ZEN): ZEN stock is up 0.86% today.

Xura Inc. (MESG): MESG stock is up 0.8% 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.