CEO & Founder


University of California, Berkeley

Company Info

Bionic Turtle


  • CEO and founder of Bionic Turtle
  • Holder of CFA and FRM licenses
  • Contributor at Seeking Alpha


David is a published author with a popular YouTube channel on expert finance topics including quantitative analysis, investing, and code applications. He has answered over 15,000 expert finance questions in the Bionic Turtle forum. He is an expert in financial products, financial markets, valuation models, and risk models. He has also taught thousands of students on the following subjects: credit risk, market risk, operational risk, and investment risk.


David received his bachelor's degree from the University of California, Berkeley.

Quote from David R. Harper

"I love to find the simplest possible explanation to a difficult concept."