If you look at our market cockpit and see "Nasdaq: Confirmed Uptrend, dist 3/5" — what does that 3/5 mean, and why does it matter enough to track it every single day?
The short answer: it is the most reliable early warning signal that large institutional investors are exiting the market. When they sell, breakouts fail. When breakouts fail, your system stops working. The distribution day count is the mechanism that tells you before the damage is done.
Here is how it works.
The Definition
A distribution day is a session in which the market index closes down 0.2% or more on higher volume than the previous session.
That is the entire definition. Price down. Volume up. Both conditions must be present.
Why does this combination matter? Because volume reveals who is doing the selling. On a low-volume down day, the market is simply drifting — normal fluctuation, no urgency. On a high-volume down day, someone with a large position is reducing exposure. The only participants who move volume that much are institutions: mutual funds, pension funds, hedge funds, sovereign wealth funds. When they sell, the fingerprint shows up in the daily volume record.
IBD's research team have been tracking this signal for decades. They call it "distribution" because institutions are distributing shares — selling them to the retail buyers who see a dip and step in. Price down, volume up: someone large is selling into strength.
The Three-Tier Scale
IBD assigns a specific market state based on how many distribution days have accumulated over the rolling 25-session window:
| Distribution Days | Market State |
|---|---|
| 0–4 | Confirmed Uptrend — buy signals are valid, full exposure appropriate |
| 5 | Uptrend Under Pressure — scale back exposure, no new aggressive entries |
| 6+ | Market in Correction — no new entries, manage existing positions for exit |
The transitions are not arbitrary. They are calibrated against decades of market data tracking how often heavy institutional distribution leads to a genuine market decline versus a brief pause. At 0–4 distribution days, the evidence does not suggest meaningful institutional selling — breakout systems work well in this state. At 5, the accumulation of selling pressure has historically been the threshold where breakout success rates start to drop meaningfully. At 6+, the market has consistently shown that new entries are money-losing propositions.
Why Nasdaq, Not SPX?
If you use IBD methodology, you follow Nasdaq as your primary signal — not the S&P 500.
The reason: Nasdaq is where growth leaders live. High RS-rated stocks with strong earnings and expanding margins tend to be listed there. If you are building a portfolio of leadership stocks — the kind of companies O'Neil built his methodology around — then Nasdaq tracks their world far more accurately than the S&P 500 does.
The S&P 500 is broad. It includes energy, financials, utilities, and large industrials that behave differently from growth leaders. When the S&P shows pressure but Nasdaq is holding, growth stocks are often still tradeable. When Nasdaq shows pressure, it does not matter that energy or financials are fine — your stocks are not energy or financials.
We track both on the cockpit. Nasdaq is the primary gate.
How the Count Resets
Distribution days do not accumulate forever. The count resets in three ways:
Time expiry: A distribution day older than 25 trading sessions automatically drops off the count. The rolling window matters more than history.
Market rally: If the index rises 5% or more above a distribution day's close, that day expires early. The logic: if the market has rallied that strongly past the point of the selling, those sellers were wrong and the pressure from that session has been absorbed.
Follow-Through Day: When a market in correction generates a Follow-Through Day — a strong up day (typically 1.7%+ gain on higher volume) that occurs at least four sessions into a rally attempt — the count resets. This is IBD's signal that the market has found a floor and institutional buying is returning.
What the Thai Data Shows
Our validated research on Thai market data (SET universe, 2006–present, 799 trades) shows something stronger than the US finding: in the Thai market, the Correction state is a genuine dead zone.
Average trade result by market regime at entry (Thai SET):
| Market State | Avg result |
|---|---|
| Confirmed Uptrend | +3.6% per trade |
| Uptrend Under Pressure | −1.50% |
| Market in Correction | −4.87% |
The Thai finding is the opposite of what we found in the US system. In the US, corrections are actually tradeably positive (leaders form during corrections and breakout successfully). In Thailand, the Correction state is deeply negative — it is where the money dies. This is why our cockpit and system apply a strict gate: if SET is in Correction, Thai entries are suspended. This is not a guess or a rule borrowed from a book. It is a finding from our own data.
Confirmed Uptrend is where the Thai edge lives. Distribution count is what tracks how close we are to losing it.
The Count Right Now
At time of writing (June 16, 2026):
- Nasdaq: 3 distribution days — Confirmed Uptrend
- SPX: 5 distribution days — Uptrend Under Pressure
- SET: Confirmed Uptrend, dist 0/5
The cockpit tracks these daily. The count updates at the close of each session.
Understanding what goes into that number — not just reading it — is what lets you trust the gate when it tells you to hold back. When the count hits 6, the system is not being cautious for caution's sake. It is reflecting a record of institutional selling that has historically preceded real damage.
The leaders of the next cycle are being forged right now in whatever correction comes. The distribution day count tells you when you are allowed to start buying them.
[MOEasymmetry Cockpit](https://moeasymmetry.pages.dev/cockpit.html) — live SET + Nasdaq distribution count, updated daily.
This article is for educational purposes only and does not constitute investment advice.