Contract Specifications
Contract specifications describe the standardized details of a futures or options contract. These details define how the contract trades and settles.
Key Elements
- Contract size
- Tick size and tick value
- Trading hours
- Settlement method (cash or physical)
- Delivery months
- Last trading day
Importance
Understanding specifications is essential for sizing positions, calculating risk, and avoiding delivery issues. Small differences in tick size or contract size can materially affect PnL.
Practical Note
Traders should verify specifications on the exchange rulebook or their broker platform because rules can change over time.
Participants and Flow
Market structure concepts involve different participant roles such as brokers, dealers, clearing members, and end users. Understanding who is responsible for risk and settlement helps explain why certain rules and timelines exist.
Order flow in these systems is often constrained by cutoffs, margin rules, and reporting requirements. These constraints can create predictable liquidity patterns.
Rules and Timing
Most venues define specific trading hours, order cutoffs, and auction procedures. Deadlines for submission, modification, or cancellation can affect execution quality, especially near the open or close.
Regulatory rules also shape market behavior, including position limits, reporting thresholds, and trade review windows.
Data and Reporting
Market data feeds provide different views of activity, such as top of book, full depth, or auction imbalance. Reporting data, such as positioning reports, can be useful for sentiment and risk analysis.
Data delays, revisions, and venue differences can create mismatches, so sources should be documented and monitored.
Impact on Trading
Understanding the market structure helps traders choose appropriate order types, manage settlement risk, and anticipate liquidity shifts. It also influences how strategies behave around roll dates, auctions, or regulatory events.
Operational Risks
Operational risk includes failed settlements, incorrect contract details, and unexpected rule changes. Robust processes and regular checks reduce these risks, especially for larger portfolios.
Operational Notes
Definitions and conventions should be consistent across datasets and venues. A small difference in data fields or session boundaries can change outcomes, especially for short term strategies. Document inputs and assumptions so results can be reproduced.
If the concept depends on exchange rules or broker behavior, confirm those rules for the specific venue. Operational details often explain why a trade behaved differently than expected.
Stress Scenarios
During volatility spikes, liquidity can evaporate and price gaps can appear. Under these conditions, indicators can lag, order types can misfire, and spreads can widen sharply.
Stress testing the concept against fast markets, thin liquidity, and sudden news helps reveal hidden risks. If a strategy only works in calm conditions, size and timing should reflect that.
Documentation Tips
Keep a short checklist of the rules, parameters, and decision points. Record how the concept is used in live trading and compare it to backtest assumptions. This makes future refinement easier and reduces drift in execution.
Common Questions
Traders often ask how sensitive results are to parameter choices, how the concept behaves in different regimes, and whether it scales with size. Answering these questions early improves reliability and prevents overfitting.
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime
Checklist
- Define the exact rule in plain language
- Validate data quality and timing
- Quantify execution costs
- Set risk limits and stop logic
- Review performance by regime