https://www.reuters.com/article/rivian-ipo/ev-maker-rivian-set-for-high-profile-market-debut-after-mammoth-ipo-idUSKBN2HV1QG >Amazon-backed electric vehicle maker Rivian Automotive Inc is set for a highly anticipated Nasdaq debut on Wednesday, after raising nearly $12 billion in an upsized offer that made it one of the biggest U.S. initial public offerings.