Sector rotation is money moving from one group of stocks into another: out of software into chips, out of oil into solar, out of everything into staples. The way to learn it is not a textbook but a board that shows it happening. Watch 30 sector baskets re-rank every session, read breadth next to rank so you can tell a real rotation from one name, and look at the same board at the same times each day until the shapes become familiar.
Over ten sessions from August 12 to August 25 the Rare Earth basket climbed from 30th of 30 to 5th on the close ranks, while several of the AI compute baskets drifted down the board. Nothing about that showed up in a single day; it was only visible as a path. Some members read the ten day view every morning for that reason.
By the average move of the whole basket, with breadth alongside, against the other 29 baskets, every few minutes during the session and again at the 4pm close. It comes from the tape, not from headlines.
Thirty baskets, curated and versioned: the classic groups like banks, oil and gas and healthcare, and the thematic ones like quantum, space, nuclear and the AI compute stack.
Most members say the board reads itself after a couple of weeks of looking at it at the same times each day: the open, midday, and the close.
No, and this site never claims it is. What the board does is show rotation as it happens, often before it is written about, so the reader is watching the tape rather than reacting to the story.