SPCX volume as a strike-by-expiration heatmap
Recorded in cvforge on June 22, 2026 by ConvexValue · Published July 25, 2026
Every SPCX contract in one grid — strikes down one axis, expirations across the other, volume as colour — so the most active contracts are immediately visible.
Exact prompt
show me a heatmap across strikes and expirations for $SPCX volume I want to see clearly the most active options
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, underlying_price
How to read it
A heatmap is the natural shape for chain data because the chain is already a grid. Colour intensity carries volume, so the eye finds the hot cells without reading a single number, and the whole chain fits on one screen.
What to look for is the pattern rather than the maximum. A single bright cell is one busy contract; a bright row means a strike is active across several expirations, which is a more durable statement about a level than one contract’s volume.
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.
- Concentration at a strike shows where contracts changed hands, which is not the same as where the underlying is expected to settle.
Related demos
- NOK’s most traded options, three ways
- SPCX open interest as a heatmap, and the one strike that stands out
- Where the top 100 names’ call and put volume actually sits
Search focus: options volume heatmap strikes expirations. Related: spcx option volume grid, find most active option contracts heatmap. Originally posted on X.