Wall Street’s new chat service is deleting problematic messaging By: MarketWatch August 14, 2015 at 15:17 PM EDT After questions from the New York state regulator and Sen. Warren, a new Wall Street chat service has been honing its own message. Read More >> Related Stocks: Bank of America Bank of New York Mellon BlackRock Citigroup Credit Suisse Group ADR Deutsche Bank Ag Goldman Sachs Group JPMorgan Chase & Co Morgan Stanley Nomura Holdings Inc ADR Wells Fargo