BATS IPO underwritten by its top clients, filing shows By: MarketWatch December 17, 2015 at 14:37 PM EST BATS tries hard to tell all in its second IPO attempt, but name of investor who’s also its biggest customer still a mystery Read More >> Related Stocks: Bank of America Citigroup Credit Suisse Group ADR Deutsche Bank Ag Goldman Sachs Group JPMorgan Chase & Co Morgan Stanley Nomura Holdings Inc ADR