Financial Glossary

Quick definitions for the metrics and concepts you see in StockLrn.

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Market Maker
A firm that provides liquidity by continuously quoting buy and sell prices for a security.
Market Structure
Dark Pool
A private exchange where large institutional orders are executed without pre-trade transparency.
Market Structure
Circuit Breaker
Automatic trading halts triggered when markets decline by specified percentages.
Market Structure
Bid-Ask Spread
The difference between the highest price a buyer will pay and the lowest price a seller will accept.
Market Structure
Order Book
A real-time list of all outstanding buy and sell orders for a security at various price levels.
Market Structure

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