How a stock exchange order actually works
28 July 2026 · 7 min read
When you place an order, it does not go straight to another investor. It travels through your broker's risk checks, into the exchange's order book, and is matched against the opposite side by price-time priority.
Price-time priority means the best price is matched first, and among equal prices, the order placed earlier is matched first. This is why a limit order deep away from the market may never execute.
After matching, the clearing corporation steps in as the counterparty to both sides, which is what removes the risk of the other party defaulting. Settlement then credits shares to your demat account on the T+1 cycle used in Indian equity markets.
Understanding this pipeline explains real-world frictions: why market orders can fill worse than the last traded price in illiquid stocks, and why liquidity is a risk factor, not a detail.
Educational content only — not personalized investment advice or a recommendation on any security.