Shares and exchanges
A share represents an ownership interest in a company. Exchanges provide an organised marketplace where eligible buy and sell orders are matched under applicable rules and market timings.
Indices and price movement
An index tracks a defined basket of securities and is a market indicator, not the whole market. Individual prices move as available demand and supply respond to business results, expectations, news and wider conditions.
Liquidity and order execution
Liquidity describes how readily an order may be executed without a large price impact. A market order prioritises execution while a limit order sets a price condition; neither removes volatility, delay or slippage risk.