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Design an Algorithmic Execution System
Requirements and Constraints
Design challenge: Design an algorithmic execution system that receives large parent orders from quantitative strategies, slices them into child orders using execution algorithms (TWAP, VWAP, Implementation Shortfall), routes them to exchanges and dark pools with microsecond-level latency, and tracks order state in real time.
Every quantitative trading firm sits on the same problem: a portfolio manager or automated strategy wants to buy 500,000 shares of AAPL, but dumping that into the market in one shot would move the price against you. The execution system's job is to work that order intelligently over time, minimizing market impact while tracking every fill with precision.
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