Market internals, measured in the open.

Every trading day, we recompute a catalog of market tools from our own price database and publish each one with a dated, plain-English reading and its full methodology on the page. The catalog spans four pillars:

• Markets — live internals: the Hindenburg Omen, moving-average breadth, advance-decline, new highs–new lows, the McClellan Oscillator, VIX term structure, credit spreads, a cross-asset macro panel, sector health and performance, a market heatmap, and SPY / unusual options activity.
• Signals — historical base-rate studies: every time a classic technical trigger fired on SPY since 1993, what the market actually did over the following weeks and months.
• Fund Managers — quarterly 13F portfolios of tracked institutional managers, parsed straight from SEC EDGAR.
• Economy — FRED indicators with full history, an SPY overlay, and a dated reading of each release.

Most market-internals tools are either locked behind a subscription or presented as a number with no explanation. We do the opposite: the readings are free, and each one leads with what it means in plain language and exactly how it was computed — including where we deviate from a classic specification and why that changes the reading.

Everything is built on our own database of daily OHLCV bars for roughly 5,600 US equities, with sixteen years of history (SPY back to 1993). After each market close, an automated pipeline updates the data and recomputes every tool, so the readings you see are dated to the session they came from — never stale, never guesswork.

The Trading Tools is built and maintained by Yuriy Matso, who also runs the systematic-strategy site SystemTrader. The goal here is narrower and simpler: make the raw market internals — the breadth, the regimes, the base rates — freely legible to anyone, with the methodology fully in the open.

Start with today's Hindenburg Omen reading, browse the full catalog, or read how it works and our methodology.

The Trading Tools is for informational and educational purposes only and does not provide investment advice. Nothing on this site is a recommendation to buy or sell any security. See the full disclaimer.