8 min read How trading firms grade the in-memory order book design problem, from the data structures that keep cancels O(1) to the follow-ups on price-time priority and self-trade prevention. Read article
7 min read How exchanges match buy and sell orders, why the hot path runs on a single thread, and how the book rebuilds itself after a crash. Read article
8 min read How the matching engine, sequencer, and market-data fanout of a trading platform fit together, and where its latency really comes from. Read article
5 min read Design a stock trading platform like NYSE, Nasdaq, or a brokerage like Robinhood. This problem is notable for its extreme Read article
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