High-Frequency Trading

Bjarne Stroustrup Joining an HFT Firm Isn’t a PR Stunt. It’s a Declaration of War.

Bjarne Stroustrup joining an HFT firm isn’t a PR stunt — it’s a signal that the next frontier of trading speed lives inside the C++ language itself. When the creator of the language enters the world where that language is weaponized, the competitive edge shifts from hardware to compiler semantics. This is the start of a new arms race in programming language design, and most people are completely missing it.

The 0.1% Rule: How Jane Street Builds Code That Runs 100x Faster by Doing Almost Nothing

Jane Street’s Incremental framework doesn’t just optimize code — it changes the fundamental question you ask. Instead of ‘how can I make this computation faster?’, it asks ‘what computation actually needs to happen?’ The result is a system that runs 100x faster by doing almost nothing. The real lesson? Most performance problems aren’t about speed — they’re about scope.