Listed Perth broker Euroz has nearly doubled its unaudited first half profit to $18.5 million on strong trading volumes and its involvement in several big capital raisings.

The company reported strong trading across its broking and funds management businesses over the period.

It benefitted from $730 million in capital raisings over the period and a solid performance from its 25.4 per cent stake in listed fund manager Ozgrowth and its 19.4 per cent holding in Westoz Investment Company.

Euroz has declared a fully franked interim dividend of 3 cents per share.