The QuantPact Blog

Practical writing on quantitative finance for software engineers: backtesting, statistical arbitrage, market microstructure, ML for markets and low-latency C++.

Why Not Java or Python for Low-Latency Trading?

Why HFT firms build their hot path in C++ instead of Java or Python: garbage-collection pauses, JIT warm-up, interpreter overhead, and why tail latency matters more than average speed.

· 9 min read