Stage analysis
How Stan Weinstein's four-stage model maps a stock's full life cycle — and where the money actually gets made.
Stage analysis: the short answer
Stage analysis is a technical framework, popularized by Stan Weinstein, that sorts a stock's price cycle into four repeating stages: Stage 1 basing, Stage 2 advancing, Stage 3 topping, and Stage 4 declining. Traders use it to judge whether an asset is worth owning, avoiding, or simply watching from the sidelines.
The four stages, one full cycle
Every stock moves through the same repeating arc: it goes quiet, it runs, it stalls, it falls, and eventually it goes quiet again. Stage analysis puts names on those phases so you can locate any chart in its cycle at a glance instead of reacting to every wiggle.
| Stage | Name | What it looks like | Who is acting |
|---|---|---|---|
| 1 | Basing / accumulation | Sideways range after a decline; the long moving average flattens | Patient buyers quietly absorb supply |
| 2 | Advancing / markup | Breakout from the base, higher highs, rising moving average | Trend followers pile in |
| 3 | Topping / distribution | Choppy, erratic swings; the moving average flattens again | Early buyers hand shares to latecomers |
| 4 | Declining / markdown | Breakdown below support; the moving average rolls over and falls | Sellers dominate; rallies fail |
The elegance of the model is that it is a loop. Stage 4 exhaustion eventually becomes Stage 1 quiet, and the cycle starts over. A stock is always in one of these four states.
The 30-week moving average as a thermometer
Weinstein's real contribution was a simple, objective read on which stage you are in: the 30-week (roughly 150-day) moving average, and how price sits relative to its slope. You do not need pattern-recognition wizardry.
- Stage 1: price crosses back and forth over a flat average — supply and demand are balanced.
- Stage 2: price is above a rising average — demand is winning.
- Stage 3: price whips around a flattening average — momentum is fading.
- Stage 4: price is below a falling average — supply is winning.
Volume corroborates the slope. A genuine Stage 2 breakout expands volume as price clears the base; a Stage 3 top often shows heavy volume on down weeks as larger holders quietly distribute. The moving average tells you the trend; volume tells you how much conviction is behind it.
The base is the whole point
Stage 1 — the base — is the sideways accumulation that precedes the markup. It is not glamorous. Nothing appears to be happening. But a wide, well-built base is where future Stage 2 winners are assembled, because it represents months of selling pressure being absorbed at a stable price.
This reframes what a pullback actually is. Inside an established Stage 2 uptrend, a dip back toward the rising average is not a new downtrend — it is a shallow, temporary rebalancing before the advance resumes. And a stock emerging from a long Stage 1 base has, in a sense, already done its pulling back: the correction is behind it, and the signal is the stock clearing the top of the range on volume, not waiting for one more flush lower.
Weinstein's own rule of thumb: the only stage worth owning a stock in is Stage 2. Stages 1, 3, and 4 are for watching, trimming, or avoiding — not for putting fresh capital to work.
How traders actually use it
Stage analysis is less a buy-signal generator than a filter that keeps you on the right side of the tape. Common uses:
- Screening: ignore anything in Stage 4, hunt for Stage 1 bases nearing completion, and concentrate ownership in confirmed Stage 2 names.
- Timing entries: buy the Stage 1-to-2 transition (the breakout from the base) or a controlled pullback inside an existing Stage 2 trend.
- Managing exits: tighten up when a Stage 2 leader starts printing Stage 3 behavior — flat average, erratic swings, distribution volume — rather than round-tripping the whole move.
- Reading the broader market: the same stages apply to an index. A market-wide Stage 4 is a signal to raise cash and stop trying to be a hero — cash is a position.
Honest limitations
Stages are only obvious in hindsight. In real time, a Stage 1 base and an early Stage 4 breakdown can look nearly identical, and a Stage 3 top can resolve back into Stage 2 rather than rolling over — a failed top. The 30-week average also lags by design, so it confirms trends late and turns you cautious late.
Treat stage analysis as a structural map, not a crystal ball. It tells you the character of the current trend and stacks the odds toward owning strength and avoiding weakness. It does not call the exact top or bottom, and no framework does. It is a lens for organizing decisions — not a forecast, and not investment advice.
How Coil reads it
Coil is a top-down, long-only reader of the tape, and stage analysis is essentially the grammar it speaks. Coil only wants to own names living in a Stage 2 advance — price above a rising trend, with real demand underneath — and it deliberately looks past everything grinding through Stage 4.
Where Coil leans hardest is the base. Its BASING read treats a stock emerging from a long Stage 1 range as one where the pullback has already happened: the correction is behind the chart, so the confirmation is the name clearing its line on volume, not a fresh dip to chase. That is the same instinct as Coil's core rule — buy weakness inside an uptrend, not breakouts into thin air. A shallow pull toward support in a Stage 2 leader is the entry; a vertical chase is not. Coil scores the S&P 500, Nasdaq-100 and a macro book through exactly this lens every day and publishes the board free. You can see how the stages feed the ranking on how it works. It is educational software you run yourself — not advice, not a forecast.
People also ask
Who created stage analysis?
Stan Weinstein popularized the four-stage model in his 1988 book on profiting in bull and bear markets. The idea of accumulation-markup-distribution-markdown cycles predates him, but Weinstein made it practical by tying each stage to the 30-week moving average.
What are the four stages of stage analysis?
Stage 1 is basing or accumulation (sideways after a decline), Stage 2 is advancing or markup (the uptrend), Stage 3 is topping or distribution (the trend stalls), and Stage 4 is declining or markdown (the downtrend). The cycle then repeats.
Which stage should you buy in?
Weinstein's answer is Stage 2, the advancing phase — ideally right as a stock breaks out of its Stage 1 base on expanding volume, or on a controlled pullback within an established Stage 2 trend. Stages 1, 3, and 4 are for watching, not buying.
What moving average is used in stage analysis?
The 30-week moving average, roughly equivalent to a 150-day line on a daily chart. Its slope and price's position relative to it define the stage: flat means basing or topping, rising means advancing, falling means declining.
Does stage analysis work on indexes and crypto too?
Yes. Because the four stages describe the universal rhythm of accumulation and distribution, the framework is applied to indexes, sectors, commodities and crypto, not just individual stocks. The same moving-average read works across timeframes, though shorter frames are noisier.
Related terms
Trend following · 200-day moving average · Breakout · Market leadership · full glossary →
See the stages scored, every day
Coil reads each S&P 500 and Nasdaq-100 name for exactly this — where it sits in its cycle and whether it is worth owning. The daily board is free.
Open the Coil ScannerCoil is software you install and run yourself, with your own brokerage credentials and capital. It is long-only and not investment advice, not a managed account, and not a signal service. This page is educational. All performance figures are research backtests — point-in-time and survivorship-free, not live or client returns; past performance does not predict future results.