📘 Trade Type Explanation: Opened Trade

What is it?

An Opened Trade refers to the first reported transaction for a specific security on a given trading day. It establishes the opening price for that security.

When does it occur?

Opened Trades typically occur at or shortly after the market opens (usually 9:30 AM ET for major U.S. exchanges), but can happen later for less liquid securities or in special circumstances.

Key characteristics:

• First reported trade of the day for a specific security
• Sets the opening price for the day
• Can be influenced by pre-market activity and overnight news
• Often sees higher volume due to accumulated orders

Impact on trading data:

• Open: • Directly sets the opening price for the day
• High/Low: • Becomes the initial high and low price
• Close: • No direct impact on closing price
• Volume: • Contributes to daily volume, often with higher than average size
• VWAP: • Included in VWAP calculations, can significantly influence early VWAP
• Other: • Critical for gap analysis and daily performance metrics

Why it matters:

Understanding Opened Trades is important for retail traders because:

1. They set the tone for the day's trading
2. Can indicate market sentiment based on overnight developments
3. Often experience higher volatility, presenting both risks and opportunities
4. Important for strategies involving gap trades or early market movements

Accessibility and restrictions:

• Retail investors: Can participate through market-on-open orders
• Institutional investors: Often actively participate to establish positions
• Restrictions: Subject to exchange opening procedures and potential price collars
• Broker-specific considerations: Some brokers offer pre-market trading, affecting opening trades

Example:

After positive earnings news overnight, the first trade for XYZ stock occurs at 9:30:05 AM ET, opening 2% higher than the previous day's close.

Technical details:

• SIP Mapping: Typically marked with an opening indicator in market data feeds
• Reporting requirements: Must be reported immediately as the first trade of the day

Related trade types:

• Market-on-Open (MOO) Order: Order type specifically designed to execute at the opening price
• Pre-market Trade: Trades occurring before the official market open
• Limit-on-Open (LOO) Order: Similar to MOO, but with a specified limit price

Common misconceptions:

1. Some traders assume the opening price is always the previous day's closing price
2. There's a misconception that all stocks open for trading exactly at 9:30 AM ET

Historical context:

Opening procedures have evolved with technology, moving from manual processes to automated systems that can match thousands of orders in seconds.

Regulatory considerations:

Opening trades are subject to specific rules designed to ensure fair and orderly market openings, including circuit breakers and price collars to prevent extreme volatility.