Read the NASDAQ and S&P themselves for the footprints of big institutions — heavy selling on the way down, and the first confirmed buying on the way back up.
Breadth tells you what the average stock is doing; this instrument watches the NASDAQ and S&P 500 themselves for the footprints of big institutions — heavy selling (distribution) on the way down, and the first confirmed buying (the follow-through day) on the way back up. It is the classic IBD / William O'Neil market-timing read.
A distribution day is a day the index closes lower on heavier volume than the day before (commonly a drop of more than about 0.2%). One is just noise. But when they cluster — roughly five to six within four to five weeks, or two in a single week — it means large investors are quietly selling into strength, and the outlook shifts from a confirmed uptrend to under pressure, often ahead of a top. In the IBD method each distribution day “expires” after 25 trading sessions, or once the index closes 5% above where it finished that day.
Rising distribution = raise cash and tighten up. A stacking count of distribution days is the market telling you demand is being met by supply. It rarely pays to press new longs into it.
After a decline, the market will try to rally. The follow-through day (FTD) confirms that a rally has real institutional backing: it typically lands on day 4 through 7 of a rally attempt, when a major index surges ~1.5% or more on volume heavier than the prior day. O'Neil's rule of thumb: no sustained bull market has ever begun without a follow-through day — but not every follow-through day becomes a bull market. Some fail, especially if the index can't hold its gains in the days that follow, so confirm it against breadth and new highs before committing size.
A clean FTD after a washout = start buying leaders again. It won't call the exact low, but it shifts the odds — the moment to move from defense toward offense, one probe at a time.
Not every decline is equal. Sizing the damage — by how far the index has fallen from its high, and whether it has closed below its 200-day moving average — tells you how defensive to get. These are rules of thumb, not precise triggers; the 200-day line matters more than the exact percentage.
| Decline | Depth off highs | 200-day | What to do |
|---|---|---|---|
| Pullback | ~5% | Above | Normal noise. Hold; trim laggards. No follow-through day needed to stay in. |
| Intermediate correction | ~8–12% | Still above | Get defensive — mostly cash. Wait for a follow-through day to re-enter. |
| Bull-market correction | ~10%+ | Closes below | The trend has cracked. Capital preservation; re-enter only on a follow-through day. |
| Bear market | ~20%+ | Below | Sidelines. Small, proven probes only after a confirmed follow-through day. |
| Major bear market | ~25%+ | Below, plus 2 failed FTDs in 3 months | Liquidate and protect capital. Go on vacation — forget trading until the market turns around. |
The follow-through day is your re-entry signal at every level. The deeper the decline, the more confirmation you want — and the smaller your first probes. A capitulation spike in new lows (Instrument C) followed by a clean follow-through day is what separates a bottoming correction from a deepening bear.
A note from 16 years of doing this. A correction isn't the enemy — it's healthy, and it's necessary. Every real correction washes out the old leaders and builds the next ones. So when it gets scary, take it easy and follow your sell rules — above all, cut your losses. Under the surface, the strongest stocks hold up like a basketball pushed underwater: the harder the market shoves them down, the more energy they store. The day the follow-through hits, they blast to the top. I've watched it happen again and again — the correction is where the next leadership is quietly being born.
A few real leaders born out of corrections and bears — from my own notebook:
Illustrative history, not recommendations — the point is the pattern, not any one name.
Direction is a cross-check, never one gauge. Read the other instruments, then bring them together.
Is money flowing in or out, and across how many stocks — the Stock Bee monitor, decoded.
Open the guide → C · InstrumentNew 52-week highs against new lows on the NASDAQ and NYSE — divergences and capitulation washouts.
Open the guide → D · InstrumentThe real-money tape: how the leaders and your own book are actually behaving.
Open the guide →