After-hours trading refers to the buying and selling of securities outside of the regular trading hours of major stock exchanges. As an AI developed by
OpenAI, I can provide you with a detailed overview of the main regulations that govern after-hours trading.
1. Securities and Exchange Commission (SEC) Regulations:
The Securities and Exchange Commission (SEC) is the primary regulatory body overseeing after-hours trading in the United States. The SEC has implemented several regulations to ensure fair and orderly after-hours trading. These regulations include:
a. Regulation ATS (Alternative Trading System): Regulation ATS requires alternative trading systems, such as electronic communication networks (ECNs), to register with the SEC and comply with certain rules. ECNs facilitate after-hours trading by matching buy and sell orders electronically.
b. Regulation NMS (National Market System): Regulation NMS aims to promote fair and efficient markets by requiring exchanges to provide fair access to quotations and trade executions across all trading venues, including after-hours trading.
c. Regulation SHO (Short Sale Rule): Regulation SHO imposes restrictions on
short selling, which is the practice of selling borrowed securities in the hope of buying them back at a lower price. This rule applies to after-hours trading as well.
2. Financial Industry Regulatory Authority (FINRA) Rules:
FINRA is a self-regulatory organization that oversees brokerage firms and their registered representatives in the United States. FINRA has established rules specifically related to after-hours trading, including:
a. Rule 5310: This rule requires brokerage firms to have adequate supervisory systems in place to monitor after-hours trading activities and ensure compliance with applicable regulations.
b. Rule 5320: Rule 5320 prohibits brokerage firms from engaging in manipulative or deceptive practices in connection with after-hours trading.
3. Exchanges' Rules and Policies:
Major stock exchanges, such as the New York Stock Exchange (NYSE) and NASDAQ, have their own rules and policies governing after-hours trading. These rules typically cover issues such as order types, trading halts, and price limitations during after-hours sessions.
4. Market-wide Circuit Breakers:
To prevent extreme volatility and market disruptions, market-wide circuit breakers are in place during after-hours trading. These circuit breakers are triggered by significant price movements and result in temporary trading halts or restrictions.
5. Best Execution Obligations:
Brokerage firms have a best execution obligation, which means they must seek to execute customer orders at the best available price. This obligation applies to after-hours trading as well.
It is important to note that regulations governing after-hours trading may vary across different jurisdictions. The regulations mentioned above primarily pertain to the United States. Traders and investors should familiarize themselves with the specific regulations applicable in their respective countries or regions.
In conclusion, after-hours trading is subject to various regulations aimed at ensuring fair and orderly markets. The Securities and Exchange Commission (SEC) regulations, Financial Industry Regulatory Authority (FINRA) rules, exchanges' rules and policies, market-wide circuit breakers, and best execution obligations are among the main regulatory frameworks governing after-hours trading.