All guides

Guides to reading market data

Short explanations of what each signal is, where it comes from and how to read it without a finance degree.

25 September 2026

Price records what has already been decided

Price records decisions that have already been made. Here is what filings, disclosures, options prints and volume add, and where that argument runs out.

Read guide

25 September 2026

What actually happens when a model scores a stock

How an AI stock score is actually built, from features and weights to training data, plus the limits worth knowing before you read too much into one.

Read guide

25 September 2026

Why an unexplained rating is hard to use

What makes a stock rating a black box, what real explainability looks like at the signal and filing level, and the questions to ask of any rating you read.

Read guide

25 September 2026

The input families behind a market score

The five families of data behind a market score, what each one adds, what each one misses, and why no single source can carry a score on its own.

Read guide

25 September 2026

Checking what sits behind an AI stock rating

A repeatable way to check an AI stock rating: find the inputs, trace one back to the filing behind it, see what moved the score, then form your own read.

Read guide

25 September 2026

Building a trading journal you will actually keep

What to record in a trading journal, how to keep entries short enough to actually write, what to review weekly and monthly, and why most journals get dropped.

Read guide

25 September 2026

Five ways people misread insider filings

Copying without context, ignoring transaction codes and size, chasing the move and misreading sales. The common errors people make with insider filings.

Read guide

25 September 2026

A fifteen minute routine for sizing up a stock

A time boxed routine for researching a stock quickly: the business model, filings, insider and congressional disclosure, options behaviour and key dates.

Read guide