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

Some of the biggest gainers among Services stocks include:

Square (SQ): SQ stock is up 9.32% today.

Ari Network Svcs (ARIS): ARIS stock is up 7.23% today.

Aac Holdings Inc (AAC): AAC stock is up 6.63% today.

Attunity Ltd (ATTU): ATTU stock is up 5.76% today.

Tal International Group (TAL): TAL stock is up 5.39% today.

Alarm.Com Cmn (ALRM): ALRM stock is up 4.8% today.

Interactive Intg Grp (ININ): ININ stock is up 4.85% today.

Callidus Software (CALD): CALD stock is up 4.45% today.

Instructure Inc (INST): INST stock is up 4.08% today.

Internap Corp Cmn (INAP): INAP stock is up 3.75% today.

Some of the biggest losers among Services stocks include:

Meetme Inc (MEET): MEET stock is down 5.07% today.

Five9 Inc Cmn (FIVN): FIVN stock is down 4.82% today.

Xunlei Limited ADR (XNET): XNET stock is down 4.09% today.

Sharpspring Inc (SHSP): SHSP stock is down 3.99% today.

Arrowhead Research (ARWR): ARWR stock is down 3.46% today.

Innovative Sol⋑ (ISSC): ISSC stock is down 3.66% today.

Brookdale Senior Living Inc (BKD): BKD stock is down 3.2% today.

Bsquare Corp (BSQR): BSQR stock is down 2.71% today.

Ebix Inc (EBIX): EBIX stock is down 2.64% today.

Radnet Inc (RDNT): RDNT stock is down 2.6% 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.