Why EquationDB is going live
A database answers when it is asked. That has been EquationDB's shape so far: you write a statement, it runs on decades of history in milliseconds, you read the answer. It is a good shape for research. It is the wrong shape for a market, because a market does not wait to be asked.
The question nobody types
The most valuable question on a trading day is what is happening right now that I don't know about yet? Nobody types it, because you can't write a query for something you haven't noticed. So most of what matters in a session reaches people late: from a headline, a colleague, a chart they happened to open.
We already compute the answer. Every five minutes in session the US snapshot refreshes about 19,000 symbols, the dynamic universes re-rank, breadth is stored, and a detector library of more than 1,500 event types runs every night. The query box was the only way in.
MarketEye
Live is now in the menu. It opens MarketEye: the whole market on one screen, moving through the session.
- Every stock is a point, sized by value and coloured by its move. Sectors pull their stocks together, and stocks that trade together, with the market's move taken out, sit together. A stock breaking from its sector drifts out of its cloud before anyone writes about it.
- One sentence on top describes the session from the same numbers: breadth, whether the index is weaker than the typical stock, which sector is doing the damage and which names inside it, what is decoupling, what volatility is doing. Each clause opens the statement behind it.
- The timeline is breadth drawn as weather, and a scrubber: replay the day for every stock, not just the largest, because every snapshot is kept.
- Rings pulse where something rare is happening: 52-week highs and lows, volume surges, long streaks, the top 1% of a stock's own history.
Why live, and why here
Plenty of products show a market heatmap. Two things make this different.
Every picture is a query. The sentence, the clusters, the rings: each comes from a statement you can open, change and rerun. Live is a doorway into the database, not a replacement for it. You see something, you ask about it in the same breath.
It is backed by memory. A ring on a stock is not just "unusual today". It is unusual against that stock's own history, and the database knows what happened the last 1,000 times something like it happened, across every stock. Live tells you what is happening; the rest of EquationDB tells you what it has meant.
What's next
Live is the surface. Underneath, the database is learning: every night it re-tests what it believes and keeps the record (Knowledge). The two meet when the sentence on top can say not only energy is decoupling but the last six times energy decoupled like this, here is what followed.