Choosing a Clearing Broker

One of the most important decisions for an upstart broker-dealer (that provides execution services) is with…

Obtaining a broker-dealer license

On July 10th, 2020, our subsidiary Proof Services LLC received formal notice that its application for FINRA membership was approved. This was the culmination of a cumbersome almost-year-long process. While there are official guides from the regulators, we thought it…

Setting up a Tick Data Research Environment

A managed tick data service like OneTick Cloud can help teams focus on their business, rather than infrastructure and engineering concerns.

Archiving Books and Records for a Broker-Dealer

What it means to be a cryptographer

When Michael Lewis came to visit the IEX office in 2016, he had his young son in tow. While he was signing my copy of Flash Boys, he asked me what I did for IEX and what I had done before. “I’m a quantitative researcher here,” I said. “But I’m also a cryptographer.”

The Addictive Drama of SEC Release №34–88216

I must admit, I’m quickly running of out things to do in isolation. I have tried all the typical advice — I have baked bread that did not taste as good as store-bought bread. I have scrolled through crafty kits on etsy and left them to be purchased by…

Proof Trading Progress Update: 12 Months

It’s been a whole year since we started Proof! This past quarter was no doubt our most…