📖OI Change Rank Report

Data Analytics on Open Interest Change

Data is refreshed after the market closes and before it reopens on the following market day, specifically from 7:00 AM to 9:00 AM New York Time.

OI CHANGE RANK FOR CONTRACTS

The ranking of Open Interest (OI) changes is organized by contract, allowing for sorting based on both the absolute OI change and the percentage change in OI. The change in a contract's OI is calculated as the difference between the current Open Interest size and the previous day's Open Interest size.

OI Change by contract

OI CHANGE RANK FOR SYMBOLS

The ranking system reflects changes in Open Interest (OI) on contracts, aggregated by symbols, facilitating sorting based on both absolute OI change and percentage change in OI. The change in a symbol's OI is computed by measuring the difference in the aggregated size of Open Interest per symbol between the current date and the previous date.

Why is open interest not updated in real-time?

Open interest is refreshed the following trading day due to several factors:

1. Settlement Process:

   • Open interest reflects the total number of outstanding options or futures contracts that haven't been settled. The process of settlement, which confirms the final figures of open interest, usually takes place at the end of each trading day.

2. Trade Reconciliation:

   • At the end of the trading day, all the transactions are reconciled to ensure accuracy. This involves matching buy and sell orders, verifying the details of the trades, and ensuring that all data is correct.

3. Accurate Reporting:

   • Refreshing open interest the next day ensures that the data is accurate and reflects all of the transactions from the previous trading day. This includes trades that may have been executed late in the trading day and may not have been processed in real-time.

4. Data Processing:

   • Collecting, processing, and updating open interest data can be a complex task that requires time. The data from all the trades of the day is compiled, verified, and then updated to reflect the current state of open interest.

5. Regulatory and Exchange Policies:

   • Exchanges and regulatory bodies have specific rules and timelines for reporting trading data, including open interest. These policies ensure a standardized time for updating such crucial market data.

6. Market Transparency:

   • Updating open interest on a daily basis provides transparency to market participants. It allows traders and investors to have a clear understanding of the level of activity and open positions in a particular market or security.

7. Technology and Operational Constraints:

   • The technology and operational processes involved in updating open interest data may also dictate the timing of when this data is refreshed.

8. Availability of Data:

   • Some trades or transactions may not be immediately reported to the exchange or clearing house. The delay until the next trading day allows for all trades to be reported and processed, ensuring that open interest figures are accurate and up-to-date.

In summary, refreshing open interest the following trading day is a practice that ensures accurate, reliable, and transparent reporting of this crucial market data.