Meet the phantom trader who blew a hole in world's oldest power market

As his wealth grew, he piled into everything from a cutting edge energy-technology provider to property, both at home and abroad

For almost two decades, Einar Aas was the most successful trader on one of Europe’s largest power markets. He was also a phantom.

Every other trader knew his name, but hardly anyone had actually ever met him. The 47-year-old didn’t attend trader meetings, conferences or other industry gatherings. Instead, he spent most of his time at home, making huge bets on Nordic power from his house in Grimstad, a small seaside town three hours south of Oslo. There he amassed a fortune trading on his own account -- in 2016 it was enough to make him the single biggest taxpayer in