Feature guide · Updated November 12, 2026

OI Analysis Dashboard

OI Analysis is a dashboard of the latest day's biggest open interest changes: the stocks, ETFs and large caps that added the most open interest, the option contracts and expirations where it built up, and the stocks whose put/call ratio is high against the past year. Premium and Premium Options members see 25 rows per view; everyone else sees 8 with the symbols hidden.

Open OI Analysis
1 · What it is

What is OI Analysis?

Open interest is the number of option contracts still open. When it jumps from one day to the next, traders opened new positions. OI Analysis is a dashboard of the latest day's biggest open interest changes in the stocks and options we track: the stocks, ETFs and large caps that added the most open interest, the option contracts and expirations where it built up, the contracts where new positions came with a big move in price or implied volatility, and the stocks whose put/call ratio is high against the past year.

2 · How we build it

How the lists are picked

  • One day's change. Open interest is counted after each close and published the next morning. The dashboard compares the latest figure with the trading day before, so it shows what the previous session's trades did to open interest.
  • Three panels, ten views. Each panel has a Change View menu with views by underlying symbol, by expiration and by option contract. Each view keeps only the rows that pass its minimums and shows the top of the list.
  • By symbol. Total call and put open interest for each stock or ETF, and its % change from the day before. Relative Open Int compares it with the stock's average over the last 90 trading days: 1.5 means 50% more contracts open than usual. Put/Call % Rank ranks the latest put/call ratio of open interest against the past year's: 100% is the highest in a year, 0% the lowest.
  • By option contract. Chg is the change in contracts and % Chg the relative change; a contract that had no open interest the day before counts as +100%. The change is also measured against the stock's average daily option volume over the last 90 trading days, so a build-up that is large for that stock ranks high. Price is the midpoint of the bid and ask and IV the midpoint of the bid and ask implied volatility; their % Chg is relative, so IV going from 30 to 33 is +10%.
  • By expiration. Call and put open interest for each of a stock's expirations, against the trading day before. A new expiration has nothing to compare with, so it isn't listed.
  • Updates. There is no date picker: the dashboard always shows the latest open interest. The tables are rebuilt every few minutes.

Rising open interest means new positions were opened, not which side opened them: every new contract has a buyer and a seller. The lists are data, not buy or sell signals.

3 · Questions it answers

What you can find out

Which stocks added the most open interest?

OI % Gainers by Stock ranks stocks and ETFs with at least 10,000 contracts open by the % change in open interest from the day before. By ETF keeps ETFs only, and By Large Cap keeps companies worth $100 billion or more. See the open interest gainers

Which option contracts saw the biggest build-up in open interest?

OI % Gainers by Contract lists contracts with at least 2,000 contracts open, a price of $0.25 or more and an increase of at least 500 contracts, ranked by the increase against the stock's average daily option volume. See the contract build-ups

Did new positions come with a jump in the option's price or implied volatility?

Four contract views pair an open interest increase with a move of 10% or more in the option's price (up or down) or in its implied volatility (up or down). The open interest has to be up at least 5% and 500 contracts, and by at least a tenth of the stock's average daily option volume. Change the view to price or IV

Which stocks have an unusually high put/call ratio?

Elevated P/C Ratio by % Rank lists stocks with at least 50,000 contracts open, ranked by where their put/call ratio of open interest sits against the past year. A rank near 100% means more puts are open, relative to calls, than at almost any time that year. How to read open interest

Which expirations are building up open interest?

OI % Gainers by Expiration lists expirations with at least 20,000 contracts open whose open interest rose from the day before, biggest % increase first. See expirations by open interest

Which trades opened the new positions?

The dashboard shows the net change, not the trades behind it. The Single Leg Trade Screener and the Multi-Leg Trade Screener put the previous day's trades next to the next morning's open interest change. How the Single Leg Trade Screener reads open interest

4 · Where to find it

Where to find it

Menu: Options › For Premium Users › Open Interest › OI Analysis, or go straight to /Reports/OpenInterestDashboard. For one stock, use OI Dashboard in the stock's menu, for example /Overview/SPY/OpenInterestDashboard/.

DashboardBy SymbolBy ExpirationBy Option Contract5-Day Changes
Dashboard - a stock chart and three panels, starting with OI % Gainers by Stock, OI % Gainers by Contract and Elevated P/C Ratio by % Rank. Pick another view in each panel's Change View menu.
By Symbol, By Expiration, By Option Contract, 5-Day Changes - the full open interest reports behind the dashboard.

Premium and Premium Options members see 25 rows in each panel, the symbols and contracts, a stock chart when they click a row, and their choice of views saved for the next visit. Everyone else sees the top 8 rows of each view with the symbol and the option's strike and type hidden.

What each view lists

ViewRanked byTo be listed
OI % Gainers by Stock% change in open interest10,000+ contracts open and a 90-day average to compare with (stocks and ETFs)
OI % Gainers by ETF% change in open interestETFs only, same rules
OI % Gainers by Large Cap% change in open interestMarket cap of $100 billion or more, same rules
Elevated P/C Ratio by % RankPut/call ratio's rank against the past year50,000+ contracts open
OI % Gainers by ContractOpen interest increase against the stock's average daily option volume2,000+ contracts open, price $0.25 or more, up 500+ contracts
OI % Gainers and Price Increase / Decrease by ContractThe option's price changePrice up or down 10% or more; open interest up 5%+, 500+ contracts and a tenth of the stock's average daily option volume; 2,000+ open; price $0.25 or more
OI % Gainers and IV Increase / Decrease by ContractThe option's implied volatility changeIV of 10 or more, up or down 10% or more; the same open interest and price tests
OI % Gainers by Expiration% change in open interest20,000+ contracts open in the expiration, up from the day before

FAQ

When does OI Analysis update?
Open interest is published once a day, the morning after each session, and the dashboard compares the latest figure with the trading day before. There is no date picker; the tables are rebuilt every few minutes.
What does Relative Open Int mean?
A stock's total open interest divided by its average over the last 90 trading days. 1.5 means 50% more contracts are open than usual.
What is the Put/Call % Rank?
Where the stock's latest put/call ratio of open interest ranks against its daily ratios over the past year: 100% is the highest in a year, 0% the lowest.
Is OI Analysis free?
Everyone can open it and see the top 8 rows of each view, with the symbols and the options' strikes and types hidden. Premium and Premium Options members see 25 rows, the symbols, a stock chart when they click a row, and their choice of views saved.
Does rising open interest mean the stock will go up?
No. Every new contract has a buyer and a seller, so a rise in open interest shows new positions, not their direction. The lists are data, not buy or sell signals.

Market Chameleon provides data, not investment advice.

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