Every sale is a gamble. Chunks of ­jadeite—as opposed to the more common nephrite, which is considered an inferior jade—resemble mud-­colored eggs. Buyers try their best to divine what’s ...

Yoni Assia is the CEO of eToro, the world’s largest social investment network. He has shown an interest in finance and computer science since his youth and so decided to merge his passions.

It has been a busy time for Ireland’s new chief rabbi Yoni Wieder. His wife Olivia gave birth to a child two weeks ago and last week saw the commemoration of Rosh Hashana, the Jewish new year ...

Yoni Bashan is the editor of the agenda-setting column Margin Call. He began his career at The Sunday Telegraph and has won multiple awards for crime writing and specialist investigations.

A generation has learned to buy shares of stock via mobile phones, and Israeli-born Assia is a big reason why. The company he cofounded, eToro, offers one of the world’s most popular stock ...