![Get ready for a derivatives trading meltdown next autumn](https://s.wsj.net/public/resources/images/FN-AF458_fn_mel_M_20181128130037.jpg)
The cost of derivatives trading in Europe is set for a financially crippling 10-fold increase under new regulation.
These so-called uncleared margin rules, which have already hit a number of larger companies based on the size of their portfolios, will pull in other pension funds and asset managers at an exponential rate each September until 2020.