Porsche IPO September valuation: $85 billion

Porsche is preparing to go public in September despite economic worries and share price forecasts. Sources say Porsche wants to be worth $60-$85 billion.

Bloomberg sources say Porsche will announce its IPO after a supervisory board sign-off and that the automaker has already received more pre-orders than shares.

Bloomberg says T Rowe Price Group and Qatar Investment Authority are among the investors interested in Porsche. Red Bull founder Dietrich Mateschitz and LVMH boss Bernard Arnault have also expressed interest.

This booming "shadow" order book is good news for Porsche and will be a relief after hearing that some investors were hesitant to invest in the IPO due to corporate governance concerns.

Some high-profile U.S. and European asset managers who might normally invest in Porsche are worried about Volkswagen's influence over the carmaker. The recent appointment of former Porsche boss Oliver Blume as VW Group boss hasn't eased their fears.

Volkswagen will be Porsche's largest shareholder, and investors can buy shares without voting rights.

Some investors question Porsche's luxury credentials, while others are wary of IPOs due to market instability caused by the Ukraine conflict and inflation.

Porsche hopes its IPO does better than Polestar's earlier this year. The company's first day of trading was strong, but shares dropped the following week.