Prosus, a subsidiary of the South African tech company Naspers, is booming on Wednesday during its debut on the Amsterdam stock exchange. The share opens 30 percent above the introductory price.

The Prosus price is just under 73 euros by 10 a.m. in the morning; considerably higher than the introductory price of 58.70 euros. With this, Prosus has a stock market value of 118 billion euros, third after Shell and Unilever.

The South African tech company Naspers still has a stake of 73 percent in the company, 27 percent is divided among the current shareholders. So no new shares have been issued.

Prosus is not a traditional company that goes public. The company accommodates the non-South African activities of Naspers, spread all over the world. Not unimportant: this also includes a 31 percent interest in the Chinese tech company Tencent, one of the largest companies in the world.