Opening Bell
A bell that rings to signify the day's start of trading on a securities exchange.

Investopedia Says:
Not all exchanges use this traditional system, but the NYSE is one that does.

Related Terms:
Closing Bell
Open Order
Trading Session
Wide Open

• Option Cycle
• Option Disclosure Document
• Option Premium
• Option Pricing Theory
• Options Backdating
• Option Schedule
• Options Clearing Corporation (OCC)
• Options Clearing Corporation (OCC)
• Options Contract
• Option Series
• Options Price Reporting Authority (OPRA)
• Options Price Reporting Authority (OPRA)
• Oracle Of Omaha
• Order
• Order Audit Trail System (OATS)
• Order Audit Trail System (OATS)
• Order Book Official
• Order Driven Market
• Ordering Rules
• Orderly Market
• Order Management System (OMS)
• Order Management System (OMS)
• Order Protection Rule
• Order Splitting
• Ordinary Annuity