Unit
- Exchange types: Stock exchanges operate as either physical trading floors or fully electronic platforms. Electronic exchanges like Nasdaq match orders via central limit order books, while traditional exchanges like NYSE still maintain designated market makers for certain securities. The choice affects execution speed, transparency, and market depth for participants.
- Market structure tiers: Primary markets involve initial public offerings where companies raise capital directly from investors. Secondary markets facilitate trading of existing shares among investors, providing liquidity and price discovery. Understanding this distinction is critical because trading operations focus almost exclusively on secondary market activities.
- Listing requirements: Companies must meet specific financial and governance standards to list on an exchange, such as minimum market capitalization, shareholder equity, and audited financial reports. Exchanges enforce continued listing standards to maintain market integrity. Operations staff monitor compliance with listing rules to avoid delisting risks.
- Exchange governance: Regulatory bodies like the SEC oversee exchanges to ensure fair and orderly markets. Exchanges self-regulate through rules on order types, trading halts, and surveilling for manipulative behavior. Trading operations teams must stay updated on exchange rule changes to avoid inadvertent rule violations.
- Trading hours and calendars: Each exchange defines regular trading sessions, pre-market, and after-hours periods. Holidays and early closes are set annually, affecting settlement dates and margin calls. Operations professionals use exchange calendars to plan trade processing and resource allocation.
- Market data feeds: Real-time data feeds from exchanges include level 1 (top of book) and level 2 (full order book) information. The speed and depth of data influence trading decisions and latency measurement. Operations staff manage data vendor relationships and ensure accurate feed consumption.
- Circuit breakers: Exchanges implement market-wide and single-stock circuit breakers that halt trading when prices move beyond predefined thresholds. These mechanisms prevent panic selling and allow time for information dissemination. Trading operations must trigger manual procedures during halts, including notifying clients and adjusting orders.
- Cross-border trading: Global equity markets allow investors to trade shares listed on foreign exchanges through depositary receipts or direct access. This introduces complexities in currency conversion, time zones, and regulatory compliance. Operations teams handle multi-currency settlement and coordinate with local custodians.
- Order types: Exchanges support various order types including market orders, limit orders, stop orders, and iceberg orders. Each type impacts execution priority, price guarantee, and visibility. Operations teams must understand order type behavior to manage client expectations and optimize trade execution strategies.
- Settlement cycles: Equity trades typically settle on a T+2 basis in most markets, meaning delivery of securities and payment occurs two business days after trade date. Shortened settlement cycles, such as T+1, are being adopted in some jurisdictions. Operations staff coordinate settlement instructions and manage fails.
- Short selling rules: Many exchanges impose short selling restrictions, such as the uptick rule or alternative uptick rule, to prevent excessive downward pressure on stock prices. Operations must track short sale positions, maintain locate records, and ensure compliance with disclosure requirements.
Regulatory Requirement
Regulation: SEC Rule 611 (Regulation NMS)
Requires that trades be executed at the best available price across all public exchanges and trading venues. Operations must ensure order routing systems adhere to this rule by implementing smart order routing that scans multiple venues for the best price before execution.
Quick Revision
- Exchanges can be physical or electronic, with different order matching mechanisms.
- Primary markets raise capital; secondary markets provide liquidity.
- Listing requirements ensure minimum quality standards for traded companies.
- Exchange governance includes self-regulation and external oversight.
- Trading hours include regular, pre-market, and after-hours sessions.
- Market data feeds vary in depth and speed, affecting trading decisions.
- Circuit breakers halt trading during extreme volatility.
- Cross-border trading adds currency and regulatory complexity.