Faster and more powerful computers mean that stock trading can happen at rapid speeds. (Shutterstock) March 15, 2020 Stock market rollercoaster: Why high‑frequency trading isn’t to blame Nikola Gradojevic, University of Guelph and Deniz Erdemlioglu, IÉSEG School of Management Regulators, in their attempts to level the playing field for all investors, should not exclusively view high-frequency traders as market destabilizers.