IBD Follow Through Day Definition

Whether you are an IBD position trader or not, you will want to know when a new attempted-rally becomes a “confirmed rally” with a Follow Through Day (FTD). Read the info below and you will realize that you should not bottom-fish until you see a follow through day.

When the market is in correction (now). An attempted rally starts on the first up day off the bottom or a reversal day like today (8/5/24). If the market goes below that low price, we start over. If it stays above, we look for an FTD in day 4 or later.

From Stock Guide 2024Q1

  • Always buy something on an FTD.
  • FTD is a substantial jump (at least 1.25%) of Naz or S&P on higher volume than the day before on Day 4 or later of a rally attempt
  • Not all FTDs work, but no bull market rally in history has ever started without one.
  • The key with FTD is to be selective with your buying and start with smaller position sizes
  • Find the strongest leaders, avoid the laggards.
  • Start with leaders with proper setups, and if it works, put more money to work. That is, get confirmation your trades are working
  • In the downtrend, maintain your watch list
  • New leaders will often have RS lines near new highs and 90+RS
  • The biggest money is made at the beginning of new uptrends when the future leaders take off and begin their ascents

How to Classify Rallies

Rally Type Length (Post FTD) Gain Frequency
Whipsaws <= 15 days Doesn’t Matter 26.5%
SLOGS (Small Losses or Gains) > 15 days <= ± 3% 41.3%
Money Maker > 15 days 3% < Gain < 15% 25.9%
Life Changer > 15 days > 15% 6.3%

**End of Rally is when IBD calls Market Correction.

  • About 33% of follow through days produce rallies where you can make money
  • An additional 41% will produce rallies with Small Losses Or Gains (SLOGs) and give enough time to make a safe exit
  • Conclusion: Follow through days are a good buy signal, but money management is key.
  • Transcript Notes:
    • It looks like 74% will make money, but the lesson learned is to not invest too much money in at the start of a rally.
    • Like IBD says, start with a couple of stocks and see how they do.
    • In some following slides, you will see some other signals to help.
  • The first 3 days are important because if you see professional distribution on day 1,2, or 3, that is a yellow flag and rally will rarely be good. If 2 of first 3 days is distribution, there has never been a “Life Changer” rally after that.
  • The first 25 days are also important, you want to see some subsequent FTDs, as major rallies average 2 to 3 subsequent FTDs and about 8 accumulation days.
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Since we are in a market correction, I wanted this thread to pop up. Also, here are some additional words or details I came across.

If the index closes lower but in the upper half of its daily price range (True-Range), this is also acceptable as the first day of a rally attempt. This is called a “pink rally day,” a reference to the color of down bars in IBD Charts and IBD MarketSurge.

This I saw in an article today and thought it was insightful (3/12/25)

(Keep in mind that the first few days of a rally attempt usually see a fair amount of short covering. But if one or more indexes rally powerfully in higher volume on the fourth day or later of a rally attempt, that would raise the likelihood of a more sustained rally.)

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Here is an additional slide from the old IBD video

I do not see and professional distribution in the first 3 days after the FTD of 4/22/25. All days on S&P were up, and day 4 on Naz was a PD, but that was out of the 3 day window.

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It would be interesting to know if you do not have a PD what kind of Rally you are going to have. Webby is really leary of the 200sma but he did show where sometimes they just break through. Not sure why he is so nervous.