Stock Exchange

• Modified from - ByteByteGo courses 

Questions

What

• What securities are we going to trade? (Stocks)
• What types of order operations are supported? (Placing a new order, canceling an order)
• What types of orders do we need to support? (Limit order)
• What are the basic functions of the exchange? (Placing/canceling orders, viewing real-time order book, receiving matched trades in real-time)
• What scale of the exchange do we need to support? (Tens of thousands of users, at least 100 symbols, billions of orders per day)

When

• When does the trading occur? (Normal trading hours, no after-hours trading)

How

• How do we handle risk checks? (Simple risk checks, e.g., maximum 1 million shares of Apple stock per day per user)
• How do we manage user funds? (Ensure sufficient funds, withhold funds for pending orders)

Overview