Three Benefits of (Non)Correlation

“Three Benefits of (Non)Correlation”, which is the 1st in my series of short videos with the new Quantifiable Edges Correlation Tool, has been posted to the Quantifiable Edges YouTube channel.

The Correlation Tool can be accessed under Extras -> Correlation Tool for anyone that is logged in to the site. Free access simply requires a login (name & email). Signup here.

Or how about a free trial to the Quantifiable Edges Gold subscription?

Introducing the Quantifiable Edges Hypothetical Correlation Tool

I am excited to introduce the Quantifiable Edges Hypothetical Correlation Tool. I find a lot of people understand diversification, but few grasp how important correlation is when choosing diversifiers. Combining strategies that don’t move in lockstep is a huge key for improving the risk and return of the whole. It’s easy to say “diversification works.” It’s much harder to grasp why, or to see how much. Hopefully our new Hypothetical Correlation Tool will help make that clearer.

The Hypothetical Correlation Tool lets you define a handful of “models” (each just an expected return and a volatility), choose how correlated they are, decide how much of each to hold, and then watch a Monte Carlo simulation play out thousands of hypothetical futures. It reports the blended portfolio’s compound return, volatility, Sharpe ratio, and worst drawdown, draws the growth of $10,000, and even shows you which models to overweight or underweight to maximize risk-adjusted return. Here is a quick look:

A few things you can explore in about two minutes:

  • Drag a correlation slider from +1 toward −1 and watch a blend’s volatility melt away while its return holds up.
  • Flip on “crisis correlation” to see why diversification tends to fail exactly when you need it most.
  • Hit “new draw” a few times to feel how much any single backtest is just luck.
  • Check out the “User Guide” (button top right) for more detailed instruction on how to use the tool.

Note: These are not real returns and not a forecast of any strategy. Every number it produces is a hypothetical simulation generated by a mathematical model, for educational purposes only. It’s built only to illustrate the mechanics of diversification and correlation.

I’ll be doing series of posts and short demos where I will use the tool to walk through specific ideas. These include the rebalancing bonus, the limits of diversification in a crash, and the math of leverage. I hope you like the tool. Stay tuned for the first few mini-demos!

To access the tool you simply need to login to Quantifiable Edges. (Even an old expired trial will work.) Once logged in, simply look for the Correlation Tool under the “Extras” menu item. If you don’t have a Quantifiable Edges login, you can sign up for the Correlation Tool (free) here.

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

How about a free trial to the Quantifiable Edges Gold subscription?

A TICK TomOscillator Study Suggesting a Monday Bounce

Using closing TICK values as a sentiment indicator is something I learned a long time ago my friend and fellow market analyst, Tom McClellan of McClellan Financial Publications (click for Tom’s article on closing TICK). Tom uses the NYSE closing TICK readings to measure recent end-of-day sentiment. I introduced the TICK Tomoscillator several years ago. For those that are not familiar with the TICK Tomoscillator, you may find a detailed description in the May 13, 2011 blog. The Tomoscillator % Rank Friday came in below 1%, meaning Friday’s reading is among the lowest 1% in the last year. The study below uses the Tomoscillator % Rank reading rather than just the raw reading.

With 23 of 25 instances closing up the next day, there has been a strong bullish inclination. And the line going from lower left to upper right is extremely straight. This is the first time this study has triggered since 2024, but I’ve liked it for a long time and it’s always on my radar.

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List. Also note you can now read the Quantifiable Edges blog and other “stuff” from Rob on his new Substack.

How about a free trial to the Quantifiable Edges Gold subscription?

Memorial Week History And The One Day That’s Been Consistent

The week of Memorial Day has shown some interesting tendencies over the years. It has been less consistent recently. The chart below examines SPX performance from the Friday before Memorial Day to the Friday after it.

There was no substantial edge apparent throughout the 70s, but starting in 1983 through 2009 there was a substantial bullish tendency. The last 16 years this week has seen more of a struggle. But there remains one day during Memorial Day week where the upside tendency seems to have persisted. That day is Thursday.

A 70% win rate and a strong, steady move higher suggest Thursday looks like a pretty good day from a seasonal standpoint. Traders may want to keep this in mind for later this week.

 

Related Quantifiable Edges Studies

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

How about a free trial to the Quantifiable Edges Gold subscription?

A Historical Look at the Top 20 6-week $SPX Rallies Since 1950

A few days ago on X, Charlie Bilello pointed out SPX had gained more than 16% over the previous six weeks and that’s one of the biggest six-week rallies of all time. I looked back at the top 20 non-overlapping 30-trading-day rallies since 1950. They can all be found in the table below.

Shaded rows are those instances where there was less than a 20% drawdown at the start of the rally. The current instance saw one of the shallower drawdowns. Only 1955, 1976, and 1982 saw rallies that were not coming out of larger drawdowns than the current one. After such strong rallies whether they were bear or non-bear, the next month generally did not see much progress. But longer-term results were quite impressive. After the 19 prior 6-week rallies, SPX averaged +18.8% over the next year with a 94.4% win rate, versus a +9.4% / 74.5% baseline. Below you can see the signal versus the baseline numbers.

Signal vs baseline forward returns (top 20 rallies)

Lastly a little graphic showing the one-year forward returns after each of the 6-week rallies:

So the momentum over the recent six-week period seems to be positive. We’ve seen this other ways but I thought this was an interesting look. Also impressive is that looking at the eight non-bear instances the average drawdown was only 8.29%, while the average run-up was 18.96%. There are certainly risks out there, but strong moves like we have seen recently tend to be a positive over the intermediate and long term.

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

How about a free trial to the Quantifiable Edges Gold subscription?

Modeling with the NAAIM Exposure Index

For much of last week I was at the National Association of Active Investment Managers (NAAIM) Uncommon Knowledge conference. NAAIM is a terrific organization that I have become more involved with over the years.

NAAIM has published its “NAAIM Exposure Index” since 2006. I did some research a few years ago on the index to determine whether the numbers might be valuable as part of a model. I found that 1) strongly oversold readings could be indicative that the market is so oversold it is ready to rally, 2) strongly overbought readings are not a contrarian indicator. In fact they often suggest strong momentum that is likely to continue. I had a discussion with some NAAIM members a few weeks back. The topic was the Exposure Index: who used it, what they used it for, and where was the actual value in it?

So I decided to revisit my old research and see if I could create a model based on those concepts that could demonstrate the value that the index provides. Results came out better than anticipated. Below is a look at the profit curve of the model versus the S&P 500.

The NAAIM Exposure Index is released each week during market hours on Thursday. So the model trades at the close every Thursday afternoon. (Thanksgiving and other holidays will sometimes bump it forward one day.) There are three setups that will cause the model to go long.

This week’s reading is among the bottom 10% of readings seen over the last 52 weeks (one year). Additionally, it is not lower than last week’s reading. Essentially this is looking for a strongly oversold reading, but not looking to catch a falling knife. So we want to see the Exposure Index near or slightly above where it was the week before.

This week’s reading is at least 80 and it has risen at least 15 points over the last four weeks. This is looking for strong and growing enthusiasm.

This week’s reading is at least 100. As it turns out, when you have a bunch of smart investment managers getting leveraged, there is a good chance that they are right and that there are market gains ahead.

If any one of the above is true, the model will go (or remain) long 150% SPX at the close on Thursday, and will remain long at least until the following Thursday when the new number is published. Below is a stats table summarizing the results.

The numbers here compare very favorably to the SPX. Leverage when there is an edge and cash when there is not. As you can see the model’s only invested 19% of the time. That is a big risk reducer. One thing to note is the Max Drawdown. It is shown as less than 10% in the table above. But that is partially because this model is just using weekly closing numbers. I created a version in Realtest that uses daily pricing. And thanks to March 2020, the max drawdown reached 25% using daily bars. (Still less than half that of the S&P 500.)

Is this a model I would actually trade? No. I don’t think I’d trade any model where I had to hold for a full week based solely on survey results. Of course the fact that it is built solely on survey results, and does not take into account price, or trend, or volume, or breadth, or anything else, is what really demonstrates the value of the NAAIM Exposure Index. And that was kind of the whole point. Trading solely on the index may be overenthusiastic but utilizing it as one input within a larger model seems completely reasonable and could very possibly strengthen it.

I have the model available in both Excel and Realtest format. If you have a username and password at Quantifiable Edges, then you can download the model from the Other Code and Spreadsheets page. If you don’t have a log-in, you can get one by simply signing up for a free trial! And if you don’t want a free trial right now, then just join our email list and you will receive a copy. Easy as pie.

Disclaimer: The performance shown above is hypothetical and does not represent an actual trading account. Results were generated frictionlessly, meaning they do not include commissions, slippage, or other costs that would be incurred in live trading. Past performance, actual or hypothetical, is no guarantee of future results.

A Strong Start to May Has Often Been Followed by a Short-Term Dip

May got off to a positive start. But a strong start to May has typically been followed by a dip in the next few days. This can be seen in the study below, which was featured in this weekend’s subscriber letter.

Of the 25 instances that rose on the first day in May since 1987, 17 of them closed lower 4 days later. Below is an equity curve that shows how it has played out over time.

I’ll note the big drop in instance 17 was the 2010 Flash Crash. Even without that instance there appears to be a solid downside inclination.

I will also note that while seasonality appears negative over the next few days, there was quite a mix of bullish and bearish studies featured in the subscriber letter over the weekend. I don’t view this as a reason to trade on its own, but it is a tendency that traders may want to consider.

A Historical Look At $SPX on Tax Day

April 15th is tax day. Tax day has historically been a good day for the market. A reason tax day may be bullish is that it is the last day that people can make IRA contributions to count for the previous tax year. This can create a last-minute rush and you will often have an inflow of funds heading into the market right around and on April 15th (or whenever tax day ends up falling, since it is sometimes delayed). Fund managers will often put this money to work immediately and it creates a positive bias for the market. But the edge has not played out as well in recent years. This can be seen in the chart below.

Is it still potentially bullish? I believe so. Is it the layup that it once appeared to be? No. But I still find it interesting and perhaps worth consideration when thinking about Wednesday’s potential.

An updated look at Thanksgiving Week Stats

Note: Later this week I will be having the annual “Black Friday” sale, which is the only sale I run during the year. If you think you might be interested in a subscription, then now might be a good time to take a free 1-week trial and see if Quantifiable Edges would be helpful for you…

The time around Thanksgiving has shown some strong tendencies – both bullish and bearish. I have discussed them a number of times over the years. In the updated table below I show SPX performance results based on the day of the week around Thanksgiving. The bottom row is the Monday after Thanksgiving week. The top row is the Monday before Thanksgiving.

Monday and Tuesday of Thanksgiving week do not show a strong, consistent edge. But the data for both Wednesday and Friday looks quite strong. Wednesday has had the most consistent gains (76.9%), and the largest average p/l of 0.3% ($297.44 on $100k.) Friday’s stats look fairly impressive, but it has not performed nearly as well over the last 15 years as it had previously. Meanwhile, the Monday after Thanksgiving has given back a good chunk of the gains that were realized on Wednesday and Friday. The worst “Monday After” came in 2008 with a 9% 1-day decline. Since then, Monday After performance has been basically breakeven.

 

Related Quantifiable Edges Studies

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

How about a free trial to the Quantifiable Edges Gold subscription?

The Reversal Tendency of Labor Day Week

In the subscriber letter over the last several years I have demonstrated that the performance during the week of Labor Day has been impacted by the performance in the month leading up to it. Interestingly, is has been somewhat of a momentum reversal week. When SPX has rallied up to Labor Day, then it has struggled that week. And declines into Labor Day have seen positive performance. Below is an updated look at the two scenarios.

Labor Week in downtrend

Labor Day Week SPX in uptrend

The 4-day numbers are basically inverted. So the Tues-Fri after Labor Day have not seen any consistency without the delineator. But the trend filter reveals a striking difference. Over the last several weeks the market has rallied nicely, so we are currently facing the 2nd scenario. Below is a look at the profit curve for the 4-day exit following the current setup.

Labor Week after uptrend profit curve

Choppy but an obvious downslope. Traders may want to consider this for the upcoming trading week. Have a great Labor Day!

To see other studies featured in this weekend’s subscriber letter, check out a free trial.

 

Related Quantifiable Edges Studies

First trading day of the month has generally been strong…except August.

I’ve shown the chart below several times over the years. It breaks down by month the performance of the first trading day of the month. July has long had the strongest Day 1. But August is also notable for it’s lack of Day 1 performance.

As you can see it is the only month with a negative Day 1 return. Below is a look at how it has played out over time.

This doesn’t appear to be a bearish setup. Just a bunch of chop that has failed to generate gains over time. But while it doesn’t hint at a down day on August 1st, it certainly shows that August 1 has certainly not been seasonally bullish.

97 Years of Death Crosses

The SPX is going to experience a Death Cross today at the close. I’ve written many times in the past about “Death Crosses”. A Death Cross is when the 50ma crosses below the 200ma. It is confirmation of a downtrend. Some people view it as a bearish signal. As you’ll see, it is not a great “signal”.  My Norgate data goes back to 1928 for SPX (this includes its predecessor, the S&P 90, from 1928 – 1957 when the S&P 500 officially began). This made for an interesting starting point, because the 1st instance, in 1929, came shortly after the 1929 market crash that was followed by the Great Depression.  It was also followed by the most substantial decline – by far.  Let’s first look at a list of all the Death Cross formations and how the SPX performed while they were in effect.

List of Death Cross formations for SPX from 1928 - 2024

Interestingly, 36 of the 49 instances (73.5%) actually saw the SPX realize gains while the Death Cross was in effect.  The problem is the losing trades were very large.  And even most of the winners saw a sizable round-trip lower before they were able to carve out some gains (like the last one in 2022).  The average drawdown for these 49 trades would have been 13.2%.  And there were 5 separate instances that saw drawdowns of at least 45%.

Even though the giant losers were relatively rare, their impact is large.  And the fact that the 1st instance was the worst instance also provides a great example of how devastating large drawdowns can be.  The profit curve below shows a hypothetical portfolio of only being invested in the market during SPX Death Crosses.

SPX Death Cross portfolio chart showing 97 years of a losing strategy

The 1st instance from 1929 – 1933 saw the portfolio rise to $120k before falling down as low as about $20k and then finishing that trade with a value of about $34k.  And it has never managed to get back to breakeven.  The 73.5% “win rate” on the Death Cross tells me it is NOT a reliable timing device.  But the few instances of massive losses show just how valuable it can be to protect gains and avoid large portions of nasty bear markets.  If we get into a big bear market, I won’t actually be sitting out of the market for several years.  But it does allow us to adjust strategies, exposure and other risk parameters.  The Death Cross / Golden Cross on its own is not a great system.  But it can help us put the market into a context where we can better evaluate opportunities.  And I have also found it helpful when combining with other timing indicators, as I’ve done in the Market Timing Course.

Note: The Quantifiable Edges Market Timing Course does look at the Golden Cross / Death Cross in combination with other timing indicators.

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

Strong Selling The Day Before A Fed Day

I have shown many times in the past that Fed Days tend to carry a bullish edge – especially when there is selling leading up to the Fed Day. Tuesday’s selloff saw SPX close down over 1% and in the bottom half of its intraday range. I looked at this combination in the study below.

Bullish stats tableof down 1% and in bottom of range before a Fed Day

Those are some impressive stats over the next few days. I also produced the 3-day profit curve.

3-day profit curve of down 1% and in bottom of range before a Fed Day

That is a persistent move from lower left to upper right, serving as some confirmation of the upside edge suggested by the stats table.

Want research like this delivered directly to your inbox on a timely basis? Sign up for the Quantifiable Edges Email List.

How about a free trial to the Quantifiable Edges Gold subscription?

Market Returns With New Presidents

In this weekend’s subscriber letters I examined some Inauguration Day ideas.  I wondered whether a new president brought about new hope and optimism for the market.

I limited the instances to only those inaugurations where a new president was entering office. I don’t think re-elections carry a sense of “new hope” the way a new president does. I also eliminated inaugurations of Presidents that weren’t elected (Ford in ’74, Johnson in ’63, Truman in ’45, and Coolidge in ‘23). I just don’t believe the same sense of excitement is generated by a replacement as by a newly elected president. The remaining presidents and their inaugurations can be found in the table below.

DJI returns on inauguration day and beyond

First, I found it interesting that the wonderful speeches and overall positive vibes surrounding a new president did NOT translate to a strong Inauguration Day performance. (You could throw out Roosevelt and G.W. Bush here, since the market was not open on the days they were giving their speeches. Same with whatever happens Tuesday since Trump will be inaugurated with the market closed on Monday.) I’ll also note that Donald Trump could (and certainly would) claim he gave the greatest Inauguration Day speech of the last 100 years back in 2017, since the 0.48% rise on that day was the best of any president on the actual Inauguration Day. It could also be claimed that Obama gave the worst speech in 100 years, since the Dow tumbled 4% on the day of his inauguration.

I’ll also note that looking out over the next 10 and 75 days the market did often seem to embrace the new hope that comes along with a new administration. Harding in 1921 is the only one on the list that saw the market more than 3.5% lower 75 days out. Meanwhile, there were 7 instances where the market was more than 3.5% higher. Biden had the best 75-day performance since Roosevelt in 1933. It is tough to draw conclusions based on just 14 instances over a 100+ year period. Also, some might consider Trump to be a “2nd-term” president. While it is his 2nd term, and he is not eligible for another, he is elected, and it will be a new administration from the previous 4 years. So I’d view it more similar to a 1st term than a 2nd term from a seasonality perspective. With 11 of the last 13 instances showing gains, and most of them strong gains, we may have some positive seasonality helping the market along the next few months.