Three screens run every hour over the most liquid US stocks and major crypto, and publish the full result. No account, no email, no limit on what you can see. They use the same indicator code as the Signum Lab scanner, so a name that shows up here is a name the scanner would surface.
The stock side comes from the NASDAQ, NYSE and NYSE American listings, filtered to names above a one billion dollar market cap trading at least five million dollars a day, then ranked by dollar volume and capped at the top thousand. The crypto side covers the major pairs.
Symbols whose price history is unusable are dropped before ranking rather than shown with caveats. Frozen feeds, unadjusted splits and listings priced below the resolution of the feed all produce readings that would otherwise sit at the top of a volatility screen without describing anything real.