Well Street's quotes, historical prices, fundamentals, analyst data, and news are supplied by licensed, established third-party market-data providers — the same class of institutional data feeds used across the financial industry — and cover US and Canadian equities, ETFs, and related instruments.
We deliberately build on licensed professional sources rather than scraping or crowdsourcing market data. Prices and fundamentals are the foundation everything else stands on; they have to be boring and right.
The platform carries end-of-day price history going back decades, quarterly and annual financial statements, valuation and profitability ratios, analyst estimates, insider and institutional filings, and macroeconomic series. Across the screener and analytics tools, more than 1,500 fundamental and technical fields are available to build with.
Every field you can screen or chart is documented in the financial glossary, which defines each metric in plain English — with its formula where one applies — so you're never guessing what a number means. If a definition isn't clear, that's a bug in our writing, and we'd genuinely like to hear about it.
Different data moves at different speeds, and the platform reflects that honestly. Quotes update on an intraday basis during market hours. End-of-day history finalizes after each session. Fundamentals arrive when companies file them, and corporate actions — splits, dividends, ticker changes — are applied to historical series so that long-run charts and backtests stay consistent.
Upstream providers occasionally issue corrections; when they do, current data reflects the fix while point-in-time history preserves what was known on each date (see the point-in-time methodology page for why that distinction is the backbone of honest backtesting).
Every derived metric on Well Street — from a simple P/E ratio to portfolio performance attribution — is computed from the same underlying data using one consistent definition platform-wide. The same number means the same thing on a ticker page, in a screener, and inside a backtest.
Where the industry has competing conventions (there are several defensible ways to define, say, free cash flow yield), we pick one, state it in the glossary, and apply it everywhere. Consistency beats cleverness: comparisons are only meaningful when both sides are measured the same way.
Three kinds of content live on Well Street, and we keep the lines bright. Market data comes from the licensed sources described above. Community posts are the opinions and analysis of the people who wrote them — that's the point of the Street, and it's always attributed. AI-generated content, like educational explainers and market summaries, is labeled as such wherever it appears.
None of it is a recommendation. A backtest result, a screener match, or a popular post is information for your own thinking, not advice tailored to you.
Well Street is a research and analytics platform. It is not a broker, does not execute trades, and does not provide investment advice. Market data can contain errors and is provided as-is from our upstream sources; we work to surface it accurately but can't warrant every value. Past performance — real or backtested — does not guarantee future results.
We'd rather say all of that plainly than in six-point type. Evidence over vibes includes being honest about the limits of the evidence.
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