Visualize Facebook’s IPO prospectus
It’s here. Finally. Social-networking darling Facebook yesterday filed an epic initial public offering seeking to raise $5B with the company valued between $75B to $100B. The IPO prospectus (also known as “Form S-1”) filed with the SEC is a massive registration document describing the details of the offering, the company’s business model and preliminary financial… Read more
Pre-commit Tests
Keeping the trunk stable matters a lot at Wealthfront. We do continuous deployment, and when the build is broken our deployment chain stops. We have a flashing light in the office and a pre-commit hook which prevents any commit until the build is fixed. The best way to know if a commit would break the… Read more
Moneyball: Using Modern Portfolio Theory To Win Your Fantasy Sports League
Football is pretty amazing. A few short months ago, we weren’t even sure if we were even going to have a season. Now, we have 49er-mania taking over the Bay Area, the possibility for a rematch of one of the greatest superbowls ever between the Giants and the Patriots, and Ray Lewis, well, he’s just… Read more
Converting dynamic SVG to PNG with node.js, d3 and Imagemagick
Visitors to Wealthfront might notice we’re using SVG to render the risk meter in our questionnaire, as well as your performance projection and other charts. We build our visualizations using d3.js, a fantastic library that provides just the right amount of abstraction on top of SVG to allow us to develop robust visualizations quickly. SVG… Read more
Our CEO Andy Rachleff talks about VC, entrepreneurship and Wealthfront at Dec 8th 7pm in SF Stanford Alum Club
Check out Andy Rachleff, our awesome CEO, who will speak at the Stanford SF Alum Club tomorrow night. He’s going to talk about entrepreneurship from three perspectives, developed through his career as a long-term venture capitalist at Benchmark Capital funding technology start-ups, as a lecturer teaching entrepreneurship at Stanford Business School, and as the CEO… Read more
Beyond Java’s Access Control: the Visibility Test
It is generally a good practice to use the most restrictive access level that makes sense. However, Java’s access control is not always as expressive as one would want. In this blog post, I am going to give two examples where an access level must be artificially relaxed. Then, I’ll describe Wealthfront’s recently open sourced… Read more