As of 10/07/2024
Indus: 41,954 398.51 0.9%
Trans: 15,783 31.37 0.2%
Utils: 1,027 24.05 2.3%
Nasdaq: 17,924 213.95 1.2%
S&P 500: 5,696 55.13 1.0%

YTD
+11.3%
0.7%
+16.5%
+19.4%
+19.4%

43,500 or 41,600 by 10/15/2024
16,800 or 15,700 by 10/15/2024
1,125 or 1,025 by 10/15/2024
19,000 or 17,600 by 10/15/2024
5,900 or 5,600 by 10/15/2024

As of 10/07/2024
Indus: 41,954 398.51 0.9%
Trans: 15,783 31.37 0.2%
Utils: 1,027 24.05 2.3%
Nasdaq: 17,924 213.95 1.2%
S&P 500: 5,696 55.13 1.0%

YTD
+11.3%
0.7%
+16.5%
+19.4%
+19.4%
 
43,500 or 41,600 by 10/15/2024
16,800 or 15,700 by 10/15/2024
1,125 or 1,025 by 10/15/2024
19,000 or 17,600 by 10/15/2024
5,900 or 5,600 by 10/15/2024
 
Updated with new data: 8/21/2003.
New August 2023: This file proves that Fibonacci retracements don't exist. I looked at my database of stocks and catalogued retraces for the last 10 years in most of the stocks I follow. I did a frequency distribution of the results and there are no spikes at 38%, 50%, or 62%. The file is a compressed .xlsx (Excel) file and it's huge, like 54 mb uncompressed and 31 mb compressed.
$ $ $
My book, Trading Basics, shown on the left, discusses Fibonacci retracements starting on page 50, in the section titled, "Fibonacci Retrace Stop: Deal or Dud?"
If you click on the above link and then buy the book (or anything) while at Amazon.com, the referral will help support this site. Thanks.
$ $ $
In a rising price trend, price moves up in a rise  fall pattern, often retracing a portion of the prior climb. The median retrace is 59%. The most frequent retrace values are, in order, 61%, 56%, 50% and 55%. On a cumulative basis, a third (33%) of the samples stopped declining on or before retracing half (50%) of the prior up move. Two thirds retraced less than 67%.
The numbers suggest that a stop placed no closer than 67% of the prior up move will protect your position in two out of every three trades.
Research suggests that Fibonacci retracements offer no benefit in swing trading and that probably holds true for stop placement.
I found usable patterns in 766 stocks (but additional stocks were not used because they trended downward) and found 1,956 samples. About a quarter (535 samples) came from 1994 to 2003, which includes the 2000 to 2002 bear market. The rest came from 471 stocks from July 2005 to August 2006 (a bull market).
In the test, I used about 525 samples from inverted and ascending scallop chart patterns along with 471 stocks that gave additional patterns found manually.
I measured the decline from B to C as a percentage of the rise from A to B (see the above figure). Point A is the start of the uptrend, B is the uptrend peak, and C is the retrace low.
The top five most frequently occurring percentage retraces are:
You will notice that the first (61%) and third (50%), are also found in the Fibonacci retrace list of 38.2%, 50% and 61.8%. There was no spike at the 38% retrace value in my data.
The median retrace is 59%. That means half the samples retraced less than 59% and half retraced more.
On a cumulative basis, the following list shows how often a retrace occurs.
Frequency  Retrace amount 
33%  50% 
40%  54% 
45%  56% 
50%  59% 
55%  61% 
60%  64% 
66%  67% 
70%  69% 
75%  72% 
80%  75% 
90%  81% 
In words, a third of the samples (33%) will decline less than half (50%) the distance from B to A (see above chart). Two thirds will retrace less than 67%. Nearly all, 90%, will retrace less than 81% of the B to A move.
Measure the recent swing move from A to B. Take 67% of that move and subtract it from B. Place a stop no closer than the result. That should prevent you from being stopped out in two out of every three trades. For example, if point A is at 20, B is 25, then place a stop below 21.65. The move from A to B is 5 points and 67% of this is 3.35. Subtracted from B gives the stop price of 21.65.
As a sanity check, a 3.35 point drop from 25 represents a decline of 13.4%, which is quite high. You might want to narrow your stop, but the risk of being stopped will rise if you do.
 Thomas Bulkowski
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