The following stocks were the biggest movers and shakers in the Services sector today.

Some of the biggest gainers among Services stocks include:

ABM Industries Incorporated (ABM): ABM stock is up 8.27% today.

Csg Systems International (CSGS): CSGS stock is up 5.94% today.

Amedisys Inc (AMED): AMED stock is up 5.88% today.

Archrock Inc. (AROC): AROC stock is up 1.94% today.

Outerwall Inc (OUTR): OUTR stock is up 2.63% today.

Genesis Healthcare Inc (GEN): GEN stock is up 2.79% today.

Aaron’s Inc (AAN): AAN stock is up 1.98% today.

Blackrock Kelso Capital Corp (BKCC): BKCC stock is up 2.07% today.

Hortonworks Inc (HDP): HDP stock is up 1.94% today.

Yandex N.V. (YNDX): YNDX stock is up 2.04% today.

Some of the biggest losers among Services stocks include:

Yelp Inc (YELP): YELP stock is down 5.59% today.

Mattersight Corp (MATR): MATR stock is down 2.25% today.

Zillow Group Inc. (ZG): ZG stock is down 4.06% today.

Attunity Ltd (ATTU): ATTU stock is down 3.26% today.

Incyte Corp (INCY): INCY stock is down 3.05% today.

Liberty Tripadvisor Holdings I (LTRPA): LTRPA stock is down 2.75% today.

Surgical Care Affiliates Inc (SCAI): SCAI stock is down 2.04% today.

Guidance Software (GUID): GUID stock is up 0.19% today.

Sorrento Therapeutics (SRNE): SRNE stock is down 2.5% today.

Majesco Common Stock (MJCO): MJCO stock is down 2.23% 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.