📘 Trade Type Explanation: Sold Last and Stopped Stock

What is it?

"Sold Last and Stopped Stock" is a specialized trade type that occurs when a stock reaches a stop order price and the order is executed, with the trade being the last one at that price before the stock moves to a new price level.

When does it occur?

This trade type occurs:

During regular trading hours
When a stop order is triggered and executed
As the last trade at a particular price level before the stock moves to a new price
Often in volatile market conditions or when there's a sudden price movement

Key characteristics:

Involves the execution of a stop order
Marks the last trade at a specific price level
Often associated with increased volatility or price reversals
Can involve larger than average trade sizes

Impact on trading data:

Open: • Generally no direct impact unless it occurs at market open
High/Low: • May contribute to daily high or low if the stop price is at an extreme
Close: • Can impact closing price if it occurs near market close
Volume: • Contributes to daily volume like any other trade
VWAP: • Included in VWAP calculations, may have notable impact if large in size
Other: • Can signal potential price reversals or increased volatility

Why it matters:

Understanding "Sold Last and Stopped Stock" trades is important for retail traders because:

They can indicate key price levels where stop orders are clustered
May signal potential price reversals or breakouts
Can help in understanding market dynamics and order flow
Provide insights into how stop orders affect stock price movements

Accessibility and restrictions:

Retail investors: Can place stop orders that may result in this trade type
Institutional investors: May use sophisticated stop strategies that lead to these trades
Restrictions: Subject to normal trading rules and any specific stop order regulations
Broker-specific considerations: Implementation of stop orders may vary between brokers

Example:

Stock ABC is trading at $50.00. Many traders have stop-loss orders set at $49.50. If the price drops to $49.50 and triggers these orders, the last trade executed at $49.50 before the price drops further would be marked as "Sold Last and Stopped Stock".

Technical details:

SIP Mapping: Reported with a specific identifier indicating "Sold Last and Stopped Stock"
Reporting requirements: Must be accurately identified and reported by the executing venue

Related trade types:

Stop Order: The underlying order type that leads to this trade
Market-on-Close: Another specialized order type that can result in notable trades
Sold Last: Similar concept but without the stopped stock component

Common misconceptions:

Some traders may confuse this with a simple last sale at a price level
There's a misconception that these trades always lead to further price movements in the same direction

Historical context:

This trade type evolved as markets became more electronic and sophisticated, allowing for more detailed trade reporting and analysis of order flow dynamics.

Regulatory considerations:

While a normal part of market operations, large clusters of stop orders can sometimes lead to increased volatility. Regulators may monitor patterns of these trades to ensure they're not being used manipulatively.