Regulators and market participants have blamed high-speed trading for everything from causing “flash crashes” to providing some traders with an unfair advantage over less-sophisticated peers. Now, at least one regulator is saying that high-speed trading may not be the villain it has been portrayed as.

That was among the assessments made by Gregg Berman, associate director for the Securities and Exchange Commission’s Office of Analytics and Research Division, during a speech last month at a technology conference sponsored by the Securities Industry and Financial Markets Association. His views could provide an early look at the potential for new regulations designed to rein-in high-speed trading or what they might entail.