Rivian secures up to $5 billion from Volkswagen, shares soar more than 50% CNBCRivian stock soars as Volkswagen agrees to invest up to $5 Billion in new joint venture Yahoo FinanceRivian’s stock rockets 41% higher on $1 billion VW investment, planned JV MarketWatchWhat are these hidden vehicles in Rivian’s shareholder letter? Electrek.co