Sat, 02/18/2023 - 05:00 Tech Insider So-called "shadow traders" avoid scrutiny from regulators by investing in ETFs, according to a new research paper.Spencer Platt/Getty Images Tags Markets, MI Exclusive, Stocks, ETFs, Insider Trading, Stock Market Analysis, Stock Market Outlook, Stock Market Strategy, Investing Analysis, Investing Outlook, Investing Strategy, Weekend BI UK, Exchange-Traded Fund, ETF, m&a, academic papers Source Insider traders have cooked up a new way to leverage secrets, investing at leas…