Build a stock screener that shows the effective tax rate of large, multinational corporations.

Buy the shares of all the companies paying the most because in a year or two they’ll figure out how to pay next-to-nothing.

All the money/profit/regulation is moving to offshore secrecy jurisdictions. Any company trying to make a better product or investing to gain market share isn’t even playing the right game. Hire a small army of tax accountants and lawyers; profit.