Implied volatility surfaces,
for everyone.
Institutional traders have always had access to 3D vol surfaces. Now you do too - free for the ETFs you already trade, $20/month for everything else.
SPY - end of day 2026-07-30
What are 3D vol surfaces
A 3D volatility surface plots days to expiry, strike price, and implied volatility together, so the entire options market for one ticker fits in a single image.
What is skew
Skew is the shape of that surface, and the shape tells you what the market is pricing in. Ahead of a known event like earnings or FOMC, implied volatility rises most at the strikes nearest the current price, because that is where the outcome is least certain. When the market is bracing for a drop, lower strikes carry higher implied volatility than higher ones, and that lopsided shape is the fear itself, priced. If the surface is a mountain range, the skew is the shape of the hills.
Institutional-grade IV
Computed from live options data every market close. Not scraped. Not estimated.
4 DTE slices
2, 7, 14, and 31 days to expiry - the term structure traders actually care about.
$20/month premium
Comparable tools run $55 to $195 per month. We think that's too much for a retail trader.
Free
$0
Premium
$20/mo