Pre-Trade Risk Engine Architecture for Low Latency (2026)
How to design a low-latency pre-trade risk engine in 2026: inline checks, kill switches, state management, and the latency budget, with no trading advice.
Order Book Imbalance Features: A Microstructure Design
A systems view of order book imbalance features in 2026 — computing OFI, queue imbalance, and microprice from L2 data, plus the engineering pitfalls.
Event-Driven Backtesting Engine Architecture: Eliminating Lookahead Bias in Algorithmic Trading Systems
How event-driven backtesting engines prevent lookahead bias and ensure backtest-to-live fidelity. NautilusTrader and LEAN architecture teardown, order book simulation, and latency modeling.