About What's On Wall Street
An independent publisher explaining how markets work, for people who manage their own money and for professionals who want the mechanism, not the headline.
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What we publish
What's On Wall Street covers the machinery of the financial markets: how exchanges match orders, how a share is valued, how a bond's price moves with its yield, how the Federal Reserve sets rates and how that decision flows through to everything else. The guides run from a first index fund to options Greeks, factor investing and market microstructure.
Alongside the guides we publish market scanners rebuilt from the previous close every trading day (a stock screener, a sector heatmap, a breadth dashboard, a candlestick scanner, the Treasury yield curve and a correlation matrix), calculators with the formula shown on the page, quizzes with an explanation behind every answer, and a dictionary of the terms you meet on a trading screen or in a Fed statement.
Who it is for
Two readers. The first has a brokerage app and a retirement account and wants to understand what they own and what they are paying. The second has been in the market for years and wants the detail that the beginner material skips: what a wholesaler does with their order, how the fed funds futures strip implies a rate path, why a leveraged fund decays. The site is organized so each can find their level, and every section starts with a pillar guide that assumes nothing.
What we do not do
- No stock picks, price targets, trade signals or forecasts. We explain the machine; the decisions are yours.
- No broker affiliate commissions. We are not paid to recommend where you trade or what you buy.
- No paid course, newsletter or community. Nothing on the site is behind a paywall.
- No invented statistics. Where a figure cannot be sourced, we describe the behavior rather than attach a number.
If the site carries advertising in future it will be labelled as advertising and will have no influence on what is published. The editorial policy sets out how content is produced, reviewed and corrected.
Who writes it
There are no bylines on this site, because the reference material is drafted with AI assistance and pretending otherwise would be a lie. There are reviewers, and they are named. Every guide and quiz says under its heading which of them read it and edited it before it published, and who reviews this site lists all three and what each one covers.
We publish no job titles or qualifications for them, which costs us something. A guide cannot lean on the authority of whoever signed it, so it has to stand on whether its reasoning holds and its arithmetic checks out, which is why the working is printed on the page where you can check it yourself. What the tools do, what they never do, and who is accountable for the result are on how we use AI.
How the market data works
After each US close a script collects daily prices for every S&P 500 stock, the major indices and ETFs, and the Treasury's published yield curve. It computes the indicators the scanners show and publishes them as static files, so the pages load instantly and everyone sees the same numbers. The data is delayed by design, derived from public sources, and can contain errors; every scanner page shows its as-of date and says so.
Credentials and limitations
We are not registered investment advisers, broker-dealers or financial planners, and we do not present ourselves as such. We do not provide personal financial advice, manage money, or make recommendations about individual securities. What we offer is careful explanation of how markets and instruments work, with the arithmetic shown so you can check it. Please read the risk disclaimer before acting on anything published here.
Corrections and contact
Factual corrections are the reader feedback we most want. If you find an error, tell us the page and the sentence or figure, and we will fix it and note the change. Questions and topic requests are welcome through the contact page.