Top-traded calls under 0.30 delta with volume above open interest
Recorded in cvforge on May 18, 2026 by ConvexValue · Published July 25, 2026
Two conditions in one sentence: calls below 0.30 delta, and volume higher than the open interest they started the day with, ranked by activity.
Exact prompt
create a scanner displaying the top traded calls with delta <0.3 and with volume higher than Open interest
Data cadence
Live U.S. option snapshots, refreshed through the session. Open interest is an end-of-previous-day figure and updates once daily.
Plan requirements
Runs on the free cvforge app and the free data tier (20 requests/hour). No card needed.
Fields used
day_volume, open_interest, strike_price, expiration_date, contract_type, implied_volatility, delta
How to read it
Volume above open interest means more contracts traded today than existed this morning, which implies most of that activity opened new positions rather than closing old ones. Combined with a low delta, it describes new out-of-the-money call buying — or selling, since every contract has both sides.
The delta ceiling is what makes it a screen rather than a liquidity ranking. Without it, at-the-money contracts on the largest names dominate, and they nearly always trade heavily regardless of whether anything is happening.
Change it
The prompt is the interface. Ask for a different ticker, a different expiration window, or an extra column in the same sentence style and the agent edits the app in place — you do not start over, and you do not wait for anyone to build it.
Limitations
- Snapshot data, not a transaction tape: the build reads the chain as it stands, so it cannot attribute a trade to a buyer or a seller.
- Open interest updates once a day, so an intraday volume/OI comparison is always this session’s volume against yesterday’s open interest.
- Contract coverage is U.S. listed equities, ETFs and indices. Indices use the I: prefix, for example I:SPX.
- Current per-contract valuation is Massive fair market value (FMV), a proprietary estimate. cvforge does not provide option bids, asks, midpoint, quote sizes, NBBO or last trades, and FMV is not an executable quote.
- A high ratio says positions were opened, not which direction anyone expects. Read it as an attention signal, not a forecast.
Related demos
- Looking for option clues before a Bloom Energy move
- A daily board of contracts trading far above their open interest
- A severity-scored screener for out-of-the-money option activity
Search focus: calls with volume above open interest. Related: low delta call volume screener, call volume greater than oi scan. Originally posted on X.