Ticker&TapeDistribution days: spotting institutional selling
Market tops rarely happen in a single day. They build as large investors quietly sell over a few weeks. Distribution days are a simple way to count that selling.
What a distribution day is
A distribution day is a session when a major index, such as the S&P 500 or the Nasdaq, falls 0.2% or more on higher volume than the day before. The higher volume shows that big players were selling, not just that buyers stepped away.
A related signal is stalling: the index ends roughly flat or only slightly up on higher volume, often after a good run. It shows heavy selling into strength, and some traders count it as distribution too.
Volume is compared with the prior session on the same exchange, so the S&P 500 and the Nasdaq can have different counts.
Counting over 25 sessions
One distribution day means little. What matters is how many pile up in a short time. Traders count them over the last 25 trading sessions, about five weeks.
- 0 to 3: normal in a healthy uptrend.
- 4: worth watching closely.
- 5 to 6: the market is under real pressure; many tops have formed this way.
- Clusters: several distribution days in a week or two are more serious than the same number spread out.
Distribution days expire
A distribution day drops off the count after 25 sessions. It is also often removed early if the index rallies about 5% above that day's close, because the market has clearly absorbed the selling. So the count can fall even without new action, and a market under pressure can return to a healthy uptrend.
How to use the count
The Market breadth page shows the distribution-day count for the S&P 500 and the Nasdaq and marks each day on the index chart. As the count rises, become more careful: take some profits, avoid weaker setups and be quicker to sell laggards.
The count feeds the market direction status: a rising count can move a confirmed uptrend to under pressure. Watch your own stocks too. When the market is distributing, leaders often start to show heavy-volume distribution of their own.
Remember that the count is a measure of risk, not a sell order for every stock. A market with five distribution days can still rally for a while, but the odds of new breakouts working are lower, so you should expect less and protect your gains more.
Distribution day rules
| Price | Index down 0.2% or more from the prior close |
|---|---|
| Volume | Higher than the previous session |
| Window | Counted over the last 25 sessions |
| Expiration | After 25 sessions, or when the index rises about 5% above that close |
| Warning level | 5 to 6 days in the window, especially in clusters |
Common mistakes
- Panicking over a single distribution day.
- Ignoring a cluster of five or six because your stocks still look fine.
- Counting down days on lower volume, which are not distribution.
- Forgetting that old distribution days expire.
Key points
- A distribution day is an index drop of 0.2%+ on higher volume.
- Five or six in 25 sessions is a serious warning that a top may be forming.
- Days expire after 25 sessions or a 5% rally, so keep the count current.
Check what you learned
Answer at least 2 of 3 correctly to complete the lesson.
1. Which of these sessions counts as a distribution day?
A distribution day is a drop of 0.2% or more on higher volume than the prior session. The higher volume shows big players were selling.
2. The S&P 500 has five distribution days in the last 25 sessions. How should you respond?
Five or six days in 25 sessions means real pressure. The count is a measure of risk, not a sell order for every stock.
3. The distribution-day count dropped from five to three without any strong new rally day. How is that possible?
Old days fall off the count over time, so a market under pressure can return to a healthy uptrend. Keep the count current.
See the distribution-day count → Try it on Ticker&Tape