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Browser snapshot comparison

Options Open Interest Change Tracker

Compare reported open interest with your last saved snapshot for the same ticker and filters. See changes only where a contract appears in both snapshots, with explicit gaps for missing baselines.

Up to 250 contracts per request. A scan comparison is not automatically a daily change or a directional trade signal.

Open Interest Change Lookup

Current Results Have No Baseline

A successful scan attempts to save a baseline. Scan again with the same filters to compare available records.

Up to 250 returned contracts per scan. Comparisons use the same ticker and strike/type filters. No earlier baseline is used in the current results. Capture time is not the provider’s open-interest reporting date.

Enter a Ticker to Start

Type a stock or ETF symbol above and click "Track OI Changes" to see open interest changes across the options chain.

What this comparison measures

The tool subtracts the previously saved open interest from the latest reported value for each matching contract. For example, a saved value of 800 and a current value of 1,000 produce a change of +200, or +25%. These are illustrative figures, not market data.

The baseline is the last successful scan saved in this browser for the same ticker, contract type, and strike filters. Two scans on one day may show identical reported OI. Scans a week apart measure that interval, not a single trading day. The displayed capture times describe your requests, not when the provider calculated OI.

How to read missing values

  • A contract without an earlier record shows “No baseline.” It is not treated as newly opened.
  • A contract absent from the latest response is not treated as closed. Filters, the 250-contract request limit, or availability can explain the omission.
  • A measured prior value of zero supports an absolute change, but percentage change is undefined and displays a dash.
  • Summary changes include only contracts with valid values in both snapshots. They do not represent the entire options chain.

Save and compare a baseline

  1. Enter a ticker and choose a strike range and contract type. Scan to retrieve the available records.
  2. Check any storage or data warning. A failed or empty request does not replace the previous baseline.
  3. Return using the same browser and filters. The next successful scan compares matching records, then attempts to replace the saved baseline.
  4. Review the baseline capture time before interpreting the difference. Changing devices, clearing browser data, or changing filters starts a separate comparison.

Data and interpretation limits

Open interest counts outstanding contracts; every contract has a long and short side. An increase in call or put OI does not establish bullish or bearish intent. The Options Industry Council FAQ explains this distinction.

Snapshots come through Pineify’s API using the Massive options chain snapshot. Availability and reported fields depend on the upstream response. The page requests one batch rather than every page of the chain. No exchange-latency guarantee is implied.

Your ticker and filters are sent to the data service to retrieve records. The comparison baseline is stored in this browser; it is not a synced history or an account backup. Educational research only, not investment advice.

Frequently Asked Questions

Comparison timing, coverage, and browser storage.

    • Is the change measured against yesterday?

      Only if your saved baseline happens to represent the prior reporting day. This tool compares the last successful saved scan with the current response. It does not retrieve an official daily history.

    • Why does a row show no baseline?

      The current contract was not present with valid open interest in the matching saved snapshot. Its previous value is unknown, so the tool does not calculate a change.

    • Why is percentage change blank when previous OI was zero?

      Percentage change divides by the previous value. Division by zero is undefined. The absolute change remains available when zero was an actual recorded value.

    • How much of the options chain is included?

      Each scan requests up to 250 contracts with the selected contract-type and strike filters. Returned records may cover only part of the chain. Summary totals describe this sample.

    • Where is the comparison saved?

      One baseline per ticker and filter combination is saved in this browser. A successful later scan replaces it. Storage failures are displayed; clearing browser storage or using another device removes access to that baseline.

    • Does this identify who opened or closed a position?

      No. These aggregate snapshot differences do not identify a trader, reconstruct individual transactions, or determine the purpose of a position.

Inspect the contract context

Market Insights offers reported options activity and filters for further research. Sign in and check your plan’s data access. This browser’s saved snapshots do not feed TradingView strategies or execute orders.

Open Market Insights