ConvexRadar ranks US options contracts by combining option-chain pressure, premium value, IV rank, call/put context, and catalyst timing so traders can review cleaner setups without starting from a raw watchlist.
A ticker can have hundreds of expirations and strikes. ConvexRadar starts with the exact contract row, then adds the underlying price, expiration, DTE, side, volume, open interest, IV context, premium estimate, and catalyst notes.
The scanner is meant to reduce noise before the chart review. High pressure, high premium, repeat activity, and fresh catalyst context can move a contract higher in the queue, while noisy or expensive setups can be easier to avoid.
Options flow can be hedging, closing activity, spreads, or speculation. ConvexRadar organizes the signals for review and does not present any contract as a guaranteed trade outcome.
An options flow scanner does not watch money move. It watches the option chain change. Every listed contract publishes a daily volume figure and an open-interest figure, and the relationship between those two numbers is the raw material for almost everything a flow tool reports.
Volume counts contracts traded during the session and resets overnight. Open interest counts contracts that exist — positions opened and not yet closed — and updates once, after the clearing house reconciles the day. Because open interest is a settled overnight number and volume is a live intraday one, comparing them tells you whether today's activity is unusual relative to the position base that already existed.
That ratio is what ConvexRadar reports as V/OI. A contract with 400 contracts of open interest trading 4,000 times has a V/OI of 10: today's activity is ten times the standing position. The same 4,000 contracts against 200,000 of open interest is a V/OI of 0.02 and tells you almost nothing.
A single liquid underlying can list several hundred contracts once you multiply expirations by strikes by side. Ticker-level alerts collapse all of that into one row, which throws away the information that actually distinguishes one setup from another.
The strike tells you where the buyer needs price to go. The expiration tells you how long they have. The side tells you direction. The premium tells you what the position cost. Two trades on the same ticker on the same day can be opposite in every one of those dimensions, and a ticker-level feed will show them as a single line of 'unusual activity'.
ConvexRadar ranks the contract row itself, then attaches the underlying price, days to expiration, implied-volatility context, an estimated premium figure, and any catalyst falling inside the contract's life.
Contract pressure tells you something is happening. Premium tells you how much it cost to make it happen. Both matter, and they frequently disagree.
A deep out-of-the-money weekly trading 20,000 contracts at four cents represents roughly eighty thousand dollars of premium. A near-the-money contract three months out trading 800 times at nine dollars represents about seven hundred and twenty thousand. The first produces the more dramatic V/OI number; the second is the larger commitment of capital.
Neither is automatically the better setup. Cheap far-dated lottery tickets and expensive near-dated positions express different theses with different risk. Seeing both figures on the same row is what stops a scanner from mistaking activity for conviction.
The most important limitation is that chain data does not identify the initiator. When a contract trades, the print does not say whether the buyer opened a bullish position, a market maker hedged an unrelated exposure, or someone closed a short they have held for months. Volume rises identically in every case.
ConvexRadar derives print typing from chain characteristics rather than from a licensed consolidated options tape, because no such feed is licensed here. That derivation is a reasonable proxy and it is labelled as one. Any tool claiming to show you dark-pool options prints or verified institutional intent is describing data that does not exist in the public chain.
Open interest also settles overnight, so an intraday V/OI figure compares live volume against yesterday's position base. On a day when a position was both opened and closed, the chain may never show it at all.
This is why flow belongs in a research workflow rather than at the end of one. It narrows several hundred contracts to a handful worth examining. What happens after that — the chart, the catalyst, the position size, the exit plan — is the part that decides the outcome.
ConvexRadar scans US option-chain rows and ranks contracts using pressure metrics such as volume/open-interest imbalance, premium value, IV rank, call/put side, and catalyst context.
No. The workflow separates calls, puts, side bias, and broader context so traders can review both bullish and bearish pressure.
The site includes a free account path and trial flow so new users can inspect the workflow before choosing a paid plan.
Trading options involves risk. ConvexRadar is research software and does not provide financial advice or guarantee trade outcomes.