What these charts show, and what they leave out
Every bar is an end-of-day bar from Databento’s consolidated US equities summary, split-adjusted, about two years of them up to the last published session. The seven studies (three simple moving averages, a 20-day exponential average, Bollinger bands, RSI and MACD) are computed in your browser from those same bars, over the whole history, so a 200-day average is a real value at the left edge of a one-year view. Each study carries its window lengths in its name, because a study is a measurement with parameters.
What is missing is missing on purpose. There are no intraday bars, live quotes, Level 2 or time and sales: those need data we do not show publicly. RSI gets a neutral 50 line and no 30 and 70 bands, which would invite an overbought or oversold reading this page does not make. Nothing on the page picks a stock for you: the movers list is the last session’s measured moves, ranked.
Questions
Are these charts live?
No. Every bar is an end-of-day bar: one per trading session, published after the close. There are no intraday bars, live quotes or order book here, and every chart says so under it. The newest bar is the last session our data provider has published.
How far back does the price history go?
About two years: each chart loads the last 760 calendar days of daily bars. The consolidated dataset we license starts on 1 July 2024, so there is no 5Y view to offer. Prices are split-adjusted, so a 10-for-1 split does not draw a cliff on the chart.
Where do the filing marks come from?
From each company’s own submissions file at SEC EDGAR. E marks an 8-K reporting results (Item 2.02), Q a 10-Q and K a 10-K, 20-F or 40-F; other 8-Ks and a foreign issuer’s 6-Ks are small grey dots. Each sits on the session of its filing date, or the next session when it was filed on a weekend or holiday. A report filed after the close sits on that day’s bar, so the market’s reaction shows on the bar after it. SEC’s recent-filings list holds a company’s last year of filings or its latest 1,000, whichever is more, so for a very frequent filer, such as a large bank, marks older than about a year can be missing.
Are my drawings saved?
In this browser only, per ticker, and never sent to us. A level is a price; a trend line is two dated points, and it reports its own measurement: the percent change between its points and the number of sessions it spans. Nothing on this page labels a level as support, resistance, a target or a stop.
Can I share a layout?
Yes. The address bar holds the tickers, the number of charts and the range, and Copy link puts that address on your clipboard. Drawings stay in your browser and are not part of the link.
One company at a time, with its filings, ownership and calculators: the company workspace. The whole market for one session: movers and the SPY holdings map. Educational information, not investment advice.