Nasdaq, one of the world’s largest exchanges that is home to tech companies Nvidia, Apple and Amazon, is planning to submit paperwork with the US Securities and Exchange Commission on Monday to roll out round-the-clock trading of stocks, as it looks to capitalize on a global demand for US equities. Investor demand for nonstop trading in US stocks has surged in recent years, prompting regulators to introduce new rules and green-light proposals from major exchanges to enable trading beyond normal market hours. The US stock market represents almost two-thirds of the market value of listed companies globally, while total foreign holdings of US equities reached $17 trillion last year, according to data compiled by Nasdaq.For all the latest headlines, follow our Google News channel online or via the app.Nasdaq’s filing with the SEC will mark its first formal step towards rolling out round-the-clock trading, five days a week. In March, Nasdaq President Tal Cohen said the exchange operator had