The last dealing day, also known as the expiration date, is the final day on which a financial contract, such as options or futures, can be traded before it expires. On this day, investors have the opportunity to close out their positions or exercise their rights before the contract officially expires.

For example, if an investor holds a call option to buy a stock, the last dealing day is the final day they can exercise their option to buy the stock at the agreed-upon price. After the last dealing day, the contract is settled, and the investor either receives a payout or incurs a loss based on the contract's terms.

It's essential for investors to pay attention to the last dealing day to ensure they can take advantage of the opportunities presented by their financial contracts. Missing the last dealing day can result in missed opportunities or significant losses, making it crucial to stay up-to-date with the expiration dates of contracts.

The last dealing day refers to the final day on which trading is permitted for a specific financial contract, such as a futures contract or option. On this day, traders must either close their positions or prepare for the delivery of the underlying asset if it's a physically settled contract. It marks the deadline for executing trades to avoid involuntary delivery or settlement. Understanding the last dealing day is crucial for traders as it impacts liquidity and price volatility, often leading to increased market activity. This day ensures that all obligations related to the contract are settled, facilitating a smooth transition and avoiding potential disputes. Awareness of the last dealing day helps traders manage their portfolios and strategies effectively.