Un articolo del NYT parla di una frode da 60 miliardi di dollari compiuta da due operatori di borsa a danno di paesi europei basata sul cosiddetto “cum-ex trading”.

The scheme was built around “cum-ex trading” (from the Latin for “with-without”): a monetary maneuver to avoid double taxation of investment profits that plays out like high finance’s answer to a David Copperfield stage illusion. Through careful timing, and the coordination of a dozen different transactions, cum-ex trades produced two refunds for dividend tax paid on one basket of stocks.
One basket of stocks. Abracadabra. Two refunds.
The process was repeated over and over, as word of cum-ex spread like a quiet contagion. Germany was hardest hit, with an estimated $30 billion in losses, followed by France, taken for about $17 billion. Smaller sums were drained away from Spain, Italy, Belgium, Austria, Norway, Finland, Poland and others.