📘 Trade Type Explanation: Cancelled
What is it?
A Cancelled trade type refers to a transaction that was initially reported but subsequently voided or reversed.
When does it occur?
This trade type occurs when a previously executed and reported trade needs to be invalidated, often due to errors, mutual agreement between parties, or certain regulatory requirements.
Key characteristics:
- Reverses a previously reported trade
- Often accompanied by a report explaining the reason for cancellation
- May impact market data retroactively
Impact on trading data:
- Volume: Reduces trading volume by the amount of the cancelled trade
- Price: May impact high, low, open, or close prices if the cancelled trade had set any of these values
- Other: Can affect various trading statistics and require adjustments to market data
Why it matters:
Cancelled trades are crucial for maintaining accurate market data. They allow for the correction of errors and ensure that reported trading activity reflects actual, valid transactions.
Accessibility and restrictions:
- Retail investors: May experience trade cancellations in certain error scenarios
- Institutional investors: More likely to be involved in large or complex trades that might require cancellation
- Restrictions: Subject to specific rules and time limits for cancellation
- Broker-specific considerations: Procedures for trade cancellation may vary between brokers
Example:
A trade for 10,000 shares of XYZ stock is mistakenly entered as 100,000 shares. Once discovered, the erroneous trade is cancelled and replaced with the correct 10,000 share trade.
Technical details:
- SIP Mapping: Often has specific codes to denote cancelled trades
- Reporting requirements: Must be reported promptly, often with explanations for the cancellation
Related trade types:
- Correction: Similar concept, but involves modifying rather than fully cancelling a trade
- Bust: Another term sometimes used for cancelled trades
Common misconceptions:
Some may think cancelled trades are always due to market manipulation. However, they're often the result of genuine errors or technical issues and are a necessary part of maintaining market integrity.
Historical context:
The process for cancelling trades has evolved with market technologies, becoming more standardized and efficient to handle the increasing speed and volume of modern markets.
Regulatory considerations:
Trade cancellations are subject to strict regulations to prevent abuse. Exchanges and FINRA have specific rules governing when and how trades can be cancelled.