Trend anatomy: the four stages

After this lesson you can name the stage any chart is in, and you'll know the one stage worth buying.

What a trend is, structurally

Strip the word down to something checkable. An uptrend is a sequence of higher highs and higher lows: each rally exceeds the last one, and each pullback stops above where the previous pullback stopped. A downtrend is the mirror: lower highs, lower lows. When neither is happening, with highs and lows overlapping sideways, there's no trend, whatever the commentary says.

This definition matters because it's mechanical. You can look at a chart and check it, high by high, low by low, before holding any opinion at all.

Weinstein's four stages

Stan Weinstein, in Secrets for Profiting in Bull and Bear Markets (1988), gave the trend a life cycle that has organized chart reading ever since. Every stock, he observed, cycles through four stages, over and over:

Stage 1 — the base. After a decline has exhausted itself, price moves sideways, often for months. The sellers who wanted out are getting out; patient buyers absorb them. The chart is flat and nobody is paying much attention to it. A long moving average (Weinstein used the 30-week) flattens out and price oscillates around it.

Stage 2 — the advance. Price breaks out above the base and the long average turns up. Higher highs, higher lows, the average rising underneath like a floor being jacked up. This is the stage where the big advances happen, and Weinstein's central instruction is that it's the only stage to buy.

Stage 3 — the top. The advance loses order. Price swings widen, the average flattens, rallies and breaks overlap. The buyers who powered Stage 2 are now selling to latecomers, which takes time, which is why tops are usually sloppy rather than sharp.

Stage 4 — the decline. Price breaks below the topping range and the average turns down. Lower highs, lower lows. This is where holding and hoping does its damage, and where the phrase "it's cheap now" costs the most money.

Then, eventually, a new Stage 1. The cycle doesn't run on a clock, and a stage can last months or years. The sequence itself holds up well, though, because it's driven by mechanics you already know: School I's giant funds need months to build and unload positions, and their campaigns are the stages, seen from outside.

Using it

The discipline the stages buy you is a filter that works before any opinion forms. A stock in Stage 4 might have a wonderful story behind it and look cheap after the decline, and it is still in Stage 4. The structure says sellers are in control, and the framework asks you not to argue with that, but to wait for Stage 1 to form and Stage 2 to begin. A lot of expensive beginner mistakes are Stage 4 purchases bought on a Stage 2 story.

School IV will sharpen this: relative strength tells you which Stage 2 stocks lead, and School V times entries within Stage 2. What this course asks is only that you name the stage before anything else happens.

Check yourself

1. Higher highs and higher lows, with a rising long-term average underneath. Which stage, and what's the instruction? (Stage 2, the only stage to buy.)
2. A stock is down 60% from its peak and "looks cheap." What does the framework ask before anything else? (Which stage? Down 60% with lower highs and a falling average is Stage 4, and cheap has nothing to do with it. Wait for a base.)
3. Why are tops (Stage 3) usually sloppy rather than sharp? (The size that powered the advance needs time to transfer to new hands. Big positions exit slowly — the same constraint from School I, course 3.)

The idea this lesson installs

First name the stage, then form the opinion.

Next: Course 3 — "Support, resistance and bases — where technical stops live."