Stock Market Glossary
Order book
List of all open buy and sell orders for a security.
In brief: List of all open buy and sell orders for a security.
Meaning in practice
The order book contains limit orders sorted by price. Traders read liquidity, imbalances and potential support or resistance zones. At Xetra it is largely transparent (open order book).
Context for investors and traders
For traders, this term is most useful when preparing and executing an order. Its meaning depends on the venue, liquidity, time frame and order type. A single reading is not a reliable buy or sell decision.
How to use this in practice
Use the term first to describe the situation and add verifiable data: time frame, benchmark, costs and liquidity. Only then does it become an assessment that can be connected to an investment objective and risk budget.
What to keep in mind
Avoid false precision. Many market terms describe probabilities or historical patterns; they neither guarantee a return nor replace the review of a specific security.



