As of 12/20/2024
  Indus: 42,840 +498.02 +1.2%  
  Trans: 15,892 +32.54 +0.2%  
  Utils: 986 +14.76 +1.5%  
  Nasdaq: 19,573 +199.83 +1.0%  
  S&P 500: 5,931 +63.77 +1.1%  
YTD
 +13.7%  
0.0%  
 +11.9%  
 +30.4%  
 +24.3%  
  Targets    Overview: 12/12/2024  
  Up arrow44,200 or 41,750 by 01/01/2025
  Down arrow16,100 or 17,700 by 01/01/2025
  Up arrow1,050 or 975 by 01/01/2025
  Up arrow20,500 or 19,300 by 01/01/2025
  Up arrow6,100 or 5,775 by 01/01/2025
As of 12/20/2024
  Indus: 42,840 +498.02 +1.2%  
  Trans: 15,892 +32.54 +0.2%  
  Utils: 986 +14.76 +1.5%  
  Nasdaq: 19,573 +199.83 +1.0%  
  S&P 500: 5,931 +63.77 +1.1%  
YTD
 +13.7%  
0.0%  
 +11.9%  
 +30.4%  
 +24.3%  
  Targets    Overview: 12/12/2024  
  Up arrow44,200 or 41,750 by 01/01/2025
  Down arrow16,100 or 17,700 by 01/01/2025
  Up arrow1,050 or 975 by 01/01/2025
  Up arrow20,500 or 19,300 by 01/01/2025
  Up arrow6,100 or 5,775 by 01/01/2025

Bulkowski's RSI Tutorial

This article discusses failure swings and divergence in the Wilder relative strength index.

RSI Tutorial: Price Rules

Let me be clear. There is only one indicator that I use every day on every stock. Can you guess what it is? It's not the commodity channel index because I only use that on stocks I own. It's not Bollinger bands for the same reason. It's not even the Wilder relative strength index, the subject of this article.

It's price.

Price has never failed me, never given a bad signal. I don't like the direction it takes sometimes, but that's just the nature of this business.

Having written that, I do use indicators, but only under certain circumstances.

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Wilder Relative Strength Index

Let's talk about the relative strength index, or RSI. I show my version of it on the daily chart of the Dow transports (^DJT) using 70/30 as the lines between over bought (shaded red) and over sold (shaded green) with a 14-day look back on the buy and sell lines. Since both the buy and sell lines use the same look back, only one line appears. If the look backs were different, you would see a second line -- one would be used to time the entry and another for the exit.

This chart is probably unlike other charts you are used to seeing. That's because it's part of software I wrote. And no, you can't have the program. I'd spend a week telling each of you how to work it, and I don't have that kind of time.

A picture of the relative strength index and Dow transports.

The chart may look a bit fuzzy and that's because I had to reduce the size of it a bit. Think of the fuzziness as a bonus. No extra charge.

The top half of the chart shows the Dow and the bottom half shows the RSI. The vertical green and red bars are the indicator buy and sell signals overlayed on the price chart.

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RSI Tutorial: Bullish Divergence

On the left you see the transports making a lower low during October 2008 while the indicator makes higher bottoms. This is a sign of bullish divergence. Price will often, but not always, follow the indicator trend (upward in this case). You can see that price moved up to point A.

Incidentally, in a downtrend, look for divergence along the bottoms. In an uptrend, use the peaks.

RSI Tutorial: Failure Swings

Failure swings mark reliable short term turning points. They are W and M shaped patterns that you can find on many indicators for your viewing pleasure.

I show two of them circled on the chart. The W is bullish and the M is bearish. Price rises in March and it changes from moving up to trending horizontally in May (or down for a week or so). The price change after a failure swing is often of short-term duration, not major turning points like that shown here.

Finally, there are the vertical buy and sell signals. You can see how premature the green ones were back in October. But they were quite timely in late February and into March. Recently, sell signals have appeared because the RSI has moved into overbought territory. If the indicator drops, it could also be a bearish failure swing. That would mean a dip is coming in the transports.

Buyer beware...

-- Thomas Bulkowski

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See Also

 

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