BERLIN - Volkswagen raked in 9.1 billion euros ($8.8 billion) via the sale of preferred shares in sportscar brand Porsche, less than the maximum because a greenshoe option was only partially exercised, it said on Tuesday.

That puts the free-float of Porsche's preferred shares at 24.2%, the carmaker said. Volkswagen would have received 9.4 billion euros in case of a fully drawn greenshoe option, it said last month.

Stabilization manager Bank of America gave notice to Volkswagen to partially exercise the greenshoe option in the amount of 11,059,061 non-voting preferred shares of Porsche, Volkswagen said.

Total proceeds for Volkswagen, which include the sale of 25% plus one ordinary share of Porsche AG to Porsche SE , therefore stand at 19.2 billion euros.

Volkswagen listed Porsche on the Frankfurt stock exchange last month in what has been Germany's second-largest listing on record. Since the listing, Porsche shares have gained 5.8%, giving it a market valuation of 79.5 billion euros, more than the 74.5 billion for parent Volkswagen.

($1 = 1.0311 euros)

(Writing by Rachel More and Christoph Steitz, Editing by Miranda Murray)