Here are the 10 ASX-listed companies with the biggest losses on Monday.

Challenger (ASX:CGF): -3%, AU$8.61

GQG Partners (ASX:GQG): -2%, AU$1.667

Brambles (ASX:BXB): -1%, AU$23.2

Spark New Zealand (ASX:SPK): -1%, AU$1.88

SEEK (ASX:SEK): -0.6%, AU$18.21

AUB Group (ASX:AUB): -0.7%, AU$27.7

Contact Energy (ASX:CEN): -0.5%, AU$8.23

Lendlease Group (ASX:LLC): -0.4%, AU$4.55

Telix Pharmaceuticals (ASX:TLX): -0.6%, AU$9.8

The Lottery (ASX:TLC): -0.4%, AU$5.22