Blockchain firm DigitalAsset Holdings has raised $ 120 million

Interactive Brokers founder and CEO Thomas Peterffy said he was not sure the company could grow to its current level, but would not return to its previous level, according to CNBC News. Peterffy also said the company is researching the cryptocurrency market. Note: Interactive Brokers is one of the largest online businesses in the world. It is listed on NASDAQ under the symbol IBKR. Users trade products, options, finance, contracts and ETFs in 135 stores in 33 countries and territories through a single platform.