Saudi Arabia’s oil company Aramco began trading for the first time on Wednesday, gaining 10% in the first moments on the market and pushing its worth to $1.88 trillion, making it the most valuable listed company in the world.

Axar.az reports citing AP News that the state-owned oil giant started trading on the Saudi Tadawul stock exchange after a mammoth $25.6 billion initial public offering that set the record as the biggest ever in history. Trading for Aramco shares began at 10:30 a.m. in Riyadh.

The company had announced a sale of 1.5% of its shares at 32 Saudi riyals a share, or what is $8.53.