Breadth of Market Theory
A technical analysis theory that predicts the strength of the market according to the number of stocks that advance or decline in a particular trading day.

Investopedia Says:
The breadth of market indicator is used to gauge the number of stocks advancing and declining for the day. If the breadth indicator is strong, this theory predicts that the market will be rising and vice versa.

Related Terms:
Advance-Decline Index
Advance/Decline Line
Breadth Indicator
Market Breadth
Technical Analysis

• Original Issue Discount (OID)
• Original Issue Discount (OID)
• Origination
• Origination Points
• Oscillator
• Ostrich
• OTC Options
• Other Current Assets
• Other Current Liabilities
• Other Long-Term Liabilities
• Other Post-Retirement Benefits
• Outlay Cost
• Out-Of-Pocket Expenses
• Out Of The Money (OTM)
• Out Of The Money (OTM)
• Outperform
• Outperformance Option
• Output Gap
• Outright Futures Position
• Outright Option
• Outside Director
• Outside Earnings
• Outside Reversal
• Outsourcing
• Outstanding Shares