The impending sale of Wizz's Air's stocks might take place before this year ends.

Companies such as the Royal Mail Group Ltd. as well as Stock Spirits Group are also set to issue their IPOs In London. Wizz Air also has to compete Ryanair Holdings PLC (RYA), which is one of its stiff rivals in the budget airline industry, which is planning to cover more bases in Eastern Europe.

Wizz Air has yet to provide a comment on this impending sale of shares. Barclays PLC, Citigroup Inc. and JPMorgan also would not give a comment on the issue.

Issuing an IPO is often a good strategy to raise funds. According to data accumulated by Bloomberg, issues across regions such as Middle East, Africa and Europe have raised billions of dollars through IPOs this year alone.