Late-Day Market Surges Revisited

Some people astutely noted that this study on late-day market surges triggered on Friday. Unfortunately, since the original publication, the edge has not persisted. Below is an equity graph to demonstrate.

I’ve market the original study date on the chart. Up to that point there had only been 2 out of 12 instances that rose the next day. Since then it’s been a coinflip but the gainers have strongly outsized the losers.

In the original post I listed all of the instances up to that point. Below I have listed all the instances since then. Market behavior is always evolving. It is important to continually monitor edges to make sure they are still providing an edge. This is something I constantly do in the Subscriber Letter. Over the last year and a half since I first published the study the market has: 1) Shown a much greater inclination to experience these late-day market surges. There have been more instances in the last 2 years than in the previous 25 years. 2) With the market more inclined to experience a surge, it’s meaning also seems to have changed. It no longer seems to suggests a downward edge for the next day.

CBI Junps Suggesting theMarket Will Soon Bounce

Yesterday’s huge selloff caused the CBI to spike up from 4 to 17. In the past I’ve discussed how a CBI of 10 or higher has typically been a good long signal. I’ve shown that a trading system that went long when the CBI hit 10 or higher and then sold only when it had dropped back to 3 or lower showed a very favorable edge. Below is an updated list of all instances since 1995.

Note that while the returns are very good, many of the trades suffer some sizable drawdown along the way. I believe there is an upside edge but it is unliekly to be an easy trade.

Potential Huge CBI Spike on Tap

As of the close on Wednesday the Capitulative Breadth Indicator (CBI) was at 4.

With prices at the current levels as of 2pm Thursday the CBI is set to spike to 16.

This is an extremely oversold level. Ten and above has often led to market bounces. Not always immediately, though. It got up into the 40’s in July 2002 and October 2008.

For more on the CBI and what this all suggests you may want to check out the CBI posts.

https://quantifiableedges.blogspot.com/search/label/CBI

For more CBI updates toward the close you may follow me on Twitter.

https://twitter.com/qerob

From 1% Up Intraday to 1% Down Close

Below is a study that appeared in last night’s Subscriber Letter that looks at Tuesday’s volatile action.

A few notes:

1) While results are explosive, instances are very low. Rather than including this among my Active Studies List I have simply decided to track it going forward.
2) Without the 200ma filter the results are no longer bullish. There were some big declines followingthis type of action during a downtrend.

Extremely & Unusually Negative Breadth

Breadth that was so extremely negative as was seen on Friday is rare. It is especially rare when the market is not already downtrending and reaching oversold levels. The NYSE Up Volume % of 4.5% suggests nearly everything was being sold. Indiscriminate selling like this hints at panic. Below is a study last shown on the blog on February 5th that exemplifies this.

Instances are low, but with all 7 bouncing in the next day or two I believe it’s worth noting and perhaps considering now, and then tracking going forward.

Strong Rally On Weak Volume For Nasdaq

Striking about Monday’s rally was the very low volume in the Nasdaq. It not only fell below the high levels achieved during Thursday and Friday’s wild trading, but it actually posted the lowest volume in over a week. This brought about a compelling study from the May 19,2009 blog post. I’ve updated that study below:

Monster Gaps Higher

As of now the market is gapping up very strongly on bailout news. SPY is up over 4% as I type. I looked back to find other instances of monster gaps and how the market behaved on those days. For this study I required the gap to be at least 3%. Results below.

Only 4 instances make it dangerous to draw any solid conclusions. I’ll let readers do their own interpretations. I would note that all 4 instances took place in September or October of 2008.

CBI Only At 2 After Thursday’s Drop

So the big question I got yesterday from readers was “What’s the CBI reading?” For those new to the blog the CBI is my Capitulative Breadth Indicator. There is a system I’ve traded since 2005 that I call my Catapult System. It basically looks to buy into S&P 100 stocks that are undergoing capitulative selling. The CBI measures the number of active triggers. When it moves up to levels of 7-10 or more it suggests the market as a whole is becoming oversold to the point that a reversal is highly likely. Extreme selloffs like October 2008 and September 2001 have seen it go much higher (into the 40’s). I wrote many posts about the CBI in 2008 and 2009 since there were so many selloffs that induced high readings. For more information and related research you may us the link below.

https://quantifiableedges.blogspot.com/search/label/CBI

Also, below is the original CBI intro post and explanation.

https://quantifiableedges.blogspot.com/2008/01/my-capitulative-breadth-indicator.html

Since the March 2009 bottom the CBI has not had a significant reading, with the highest only reaching 3. It hit 2 a few days ago and even with yesterday’s selling did not move any higher. Though I checked in the middle of the 2:45 madness and if the market closed there it would have been a “6”. A high CBI is certainly not required for a rally, but I’m personally more comfortable getting aggressively long when I see it.

Should the CBI spike higher over the next few days I will be sure to note it here. And as always I will share the individual Catapult trades that make up the CBI in the Subscriber Letter.

A Bullish Reversal Pattern In SPY

What struck me most about Wednesday’s action was the fact that the market closed above it’s open but still down on the day. This little pattern can be bullish under the right circumstances. It will often signal a reversal after there has been a move down.

I showed a few studies related to this in last night’s subscriber letter. Below is one.


This simple pattern suggests a bounce appears likely.

Best Wishes, Thanks, And Congrats To Dr. Brett

As probably 99% of the people who read Quantifiable Edges are aware, the Traderfeed blog, written by Dr. Brett Steenbarger is nearing an end.

Over the last several years Dr. Brett’s provided a wonderful example for traders, bloggers, and service providers. The energy he put towards the blog and the rest of his work was astounding. His posts were consistently thought provoking and provided many sparks for further research on this site and others. And he’s done it with the kind of integrity not often found on Wall St.

Quantifiable Edges would have come to be without Dr. Brett. But without his inspiration, support, and encouragement throughout the last few years it certainly wouldn’t be as far along as it currently is. Any blog readers or subscribers who have benefitted from my work should be aware that some credit needs to go to the good doctor.

As readers know, I try to quantify most everything here. While it’s impossible to quantify Dr. Brett’s contribution, below is a never-before-seen picture that tells a (true) story of something that happened back in 2008…


Of course that’s just one small example.

Thank you Dr. Brett. Congratulations on your new endeavor. Whoever convinced you to join their firm will surely benefit greatly, just as so many others have over the years. While you will soon be silent on the internet, I look forward to eventually hearing of the good things you’ll accomplish in the next several years.

First Trading Day of May Has Been Seasonally Bullish

Monday is the 1st trading day of May. I’ve discussed many times before how the 1st trading day of the month tends to be seasonally bullish. Last July I showed a chart breaking it down by month. May has been one of the strongest months, both based on total return and % profitable. Below is a graph showing performance on the 1st day of May since 1987.

Also notable is that 22 of the last 23 years the SPX has closed above the final April close on either the 1st or 2nd day of May. The lone exception was 1989, which lost a total of 0.5% over the 2 days.

Strong Drops Just Before A Fed Day

Likely partially due to the fact that Fed Days have generally been positive, strong selloffs the day before have been uncommon. One study I ran last night looks at other times the SPX sold off at least 1% on the day before a Fed Day. The general results are below. It should be noted that I only looked at scheduled Fed Days. Unscheduled/surprise meetings were not included in the results.

These would seem to strongly favor a bounce on Wednesday. In last night’s Letter I included all the individual instances along with some additional discussion.

NDX Closes Above 10ma for 50 Days In A Row – 1st Time Ever

The NDX has now had a remarkable streak of 50 closes above the 10ma. That’s over 2 months without even a mild pullback. This is the longest streak since the index’s inception in 1986. Below is a chart that shows the number of days the NDX has spent above it 10ma at any point in time.

(click chart to enlarge)

It’s a little difficult to read when try to jam so much history into a small area, but the spike on the right is the current count and it is up to 50. The previous high lasted 47 days in 1989.

In last night’s Subscriber Letter I also discussed research associated with long streaks in the Dow (now at 48 days) and S&P (recently ended at 42 days). The general finding was that such persistent upmoves have a very strong tendency to continue up after the 1st pullback occurs. Rarely will you see an abrupt end to these kind of moves.

If you’d like to see that research then you may take a free trial by clicking here. If it’s been more than 6 months since your last trial you may email me at support @ quantifiable edges.com (no spaces) and I’ll be happy to set you up with one.

Strong Upside Reversal Eeks Out Small Gain

It took a strong turnaround to get the SPX back into positive territory by Thursday’s close. I looked at this several different ways last night in the Subscriber Letter. Below is one study I ran that suggested mildly bearish implications.

This seems to indicate that when it takes a lot to close up just a little you’re likely to see a pullback short-term. Not a huge edge here, but some suggestion that the SPX could struggle the next day or two. I wouldn’t normally base a trade solely on this, but I do think it is worth noting and keeping in the “bag of tricks”.