It probably has so many upvotes because it's quite a novel topic for HN. You might not appreciate it as much, being in the industry, but algorithmic trading is

It probably has so many upvotes because it's quite a novel topic for HN. You might not appreciate it as much, being in the industry, but algorithmic trading is a field most of us haven't explored. Most of the content on HN is focused on web design to be honest, so things outside of that can get quite a lot of traction.