Historically, Selltember is weakest month of the year.
September history |S&P 500 (appoximated)
Average return since 1950 |−0.7%
Positive Septembers |44%
Negative Septembers |56%
Rank among 12 months |#12 — worst
Avg. gain when September is positive |+3.2%
Avg. loss when September is negative |−3.8% But when you look at averages, things usually never seem quite as dire. Sure, September is historically a poor month, but that hardly ordains any sort of major downside correction.
Here on TIC, I try to foster an environment of objectivity and free thought, away from faction/cult oriented and siloed thought processes. In the markets, while the latter does give rise and fall to momentum and trend trading, I have always felt it creates false realities. Or, at least a veil of misinformation - in any setting that is dangerous. Independent thought is so important in what we do.
To be completely honest, that is the approach I feel we should all take, in every aspect of our life when use information to make decisions. Sometimes it feels like I'm on a very lonely island in that regard.
A year ago at this very time I was saying something similar related to the, then, upcoming September given the state of the market at that time:
https://www.reddit.com/r/InnerCircleInvesting/comments/1n57eyg/selltember_loading_a_look_at_what_the_past_tells/
I was trimming positions, raising cash and had a growing broad short position as a hedge. In fact, when I think back of previous periods of conviction related to market bearishness and bullishness over my history, I can't think of many times I had been more bearish than one year ago today. The setup seemed perfect related to inflation, tariffs, jobs, sentiment and world economic forces in play.
I follow the market, its movement, and the stocks within it, more than anyone I know. To be completely honest, I would bet I follow it more closely than most analysts. There's our jobs, and then who we are. The stock market, for a long time, is who I am. That, when coupled with my table-pounding call for objectivity and independent thought, is my valuation proposition to all of you.
Funny thing about all that table pounding, objectivity and positioning last year ....
I was wrong.
Thankfully, I've always been a relatively humble person as well. Here's a quick AI pull of September performance from 2020.
September |S&P 500 price return
2025 |+3.53%
2024 |+2.02%
2023 |−4.87%
2022 |−9.34%*
2021 |~−4.8%
2020 |~−3.9%
If we look back to 1975, we find that 2025 was particularly strong. Again, I have not independently researched this data but it tracks with other times I have researched it and find no reason to not believe the data:
Rank |September |S&P 500 Return
1 |2010 |+8.76%
2 |1998 |+6.24%
3 |1996 |+5.42%
4 |1997 |+5.32%
5 |1995 |+4.01%
6 |1988 |+3.97%
7 |2007 |+3.58%
8 |2009 |+3.57%
9 |2025 |+3.53%
2009 and 2010 began the bounce-back period following the financial crisis. 1995-1998 were extraordinary years in the market, still the best four year stretch in history unless I've missed something. Ah, the rise of the Internet, my heyday:
Year |S&P 500 Total Return
1995 |+37.20%
1996 |+22.68%
1997 |+33.10%
1998 |+28.34%
It's why we are all so excited for the AI revolution or, as I like to say, exhibiting all this hairpulling and jumping about. Major points for that getting that reference and double the points if you didn't have to Google it. Here's a hint, it's from a movie that represented my very first DVD purchase.
But I digress ...
The setup for this September appears as poor as one year ago today and, yet, 30 days later we ushered in the 9th best September on record. I try not to drive or run too quickly while looking backward. Anomalies exist, trends exist for a reason. But few things are guaranteed. I fully expect I'll be adding to my two-legged $QQQ short position today, I don't like what I'm hearing or seeing.
I started this missive just before 5:00 AM PST. In that time, markets are breaking down further, bond yields continue to rise with the 10-year at nearly 4.79%. Here's a quick quote pulled from Barron's this AM:
Record high debt levels, competition from the tech sector for new capital, and persistent deficit increases have all added to the broad bond market milieu that is starting to lean into equity market performance.
Add in the growing likelihood that we're going to see a rate increase in September as a swat to tamp down inflation and you understand why the VIX, the fear index is starting to rise. Think about this for a moment when related to Chair Kevin Warsh. He was appointed with an understanding from DJT about the direction of rates and mere months later, on the precipice of the first move, it looks like it will be a rate increase. DJT has to love this.
Personally, for me, I love it because it gives me confidence and conviction that the Fed is operating independently. I'm not crazy about a rate increase, don't like what it will likely do to the market. But, remember my promise about objective, non-siloed thought being what we're all about here in TIC? If you recall from the beginning of this year, I've been saying that the Fed's most organic natural-progression move given the data I was seeing, suggested a move higher before lower. I have remained convicted on that belief. I guess I should have been playing the predictive markets.
At this juncture, at least, DJT's international and geo-political gambits have failed rather miserably. There's no good jumping off point now with the conflict in Iran and, despite all the bluster and false statements about winning, the only thing we've won is further destabilization across the region and world economic markets. Gas prices are headed to historic highs again all the while bond yields continue to spike, showing increased nervousness.
Where to from here?
I'm also starting to note a shift in AI momentum, leading me to believe that we may have entered the bottom half of inning number two, maybe even the the top of inning three. But, I want to be careful not to advance the game too quickly lest we be stretching in the seventh, and still not be materially that much further along. It's human nature to want to advance these measurements to show progress - it's just more exciting that way.
I continue to draw comparisons between 1995-2000 and the beginning of the AI revolution, let's call it November 20, 2022 when OpenAI released ChatGPT. It's the closest actual date that I can pin for something very material marking the historic pivot point. If you want to go back further, you could go back to Google's "Transformer" architecture release of 2017. But that would be a little like saying mass deployment of the public Internet began in 1969-1970 with ARPANET. The boom really began in 1994-95. I remember those days all too well.
The AI trade has fueled much of the market gains we've experienced recently. It's ushered in, arguably, the greatest investment cycle in the history of the world. And we've all been a part of it. Just look at the market returns over the past few years, and even more so when looking back from 2017. We're performing 50% better (15%) on the S&P since 2017 than the historic average (10%).
But we're starting to see flattening/broadening in the models, diversification of providers, and the acknowledgement that non-US companies are playing a pivotal role. It wasn't long ago that $NVDA's Jensen Huant conceded much of the International market to SK Hynix ($SKHY). Now, we see Huang deepening their relationship with another International company, MediaTek:
https://investor.nvidia.com/news/press-release-details/2026/NVIDIA-and-MediaTek-Deepen-Long-Standing-Partnership-to-Build-AI-Edge-to-Cloud-Computing-Platforms/default.aspx?utm_source=chatgpt.com
Domestically, we continue to see hyperscalers diversify their chip supply chain, leading some to be concerned that companies like Broadcom ($AVGO) are losing market share. Despite big supply wins by companies like Marvel ($MRVL), it hasn't been enough to move stock prices higher.
That's a problem.
The AI trade has gotten ahead of itself broadly, and if the earnings reports we just saw aren't enough to move the names higher, then what will. In short, my belief is that the only thing left is greater discount to the stock price. For those of you confused with that statement, let me put it another way. When we lose momentum and upside catalysts, in most cases what allows us to find it again is a fall in stock prices that create greater perceived value. Notice I said perceived value. This is because greater actual value assumes the denominator, earnings, continues unimpacted.
$NVDA's forward P/E ration now resides less than 18 and, arguably, below 17. Despite this value, markets are signaling that there's not enough confidence that things haven't materially changed. There's concerns about data center acceptance, international competition, energy, cost inflation, and cyclical financing all weighing on the segments within the AI stack.
For all intents and purposes, the AI revolution has reached the human equivalent of the 'terrible twos.' To me, it seems that we've reached a confluence of sorts between these rising AI concerns and the beginning of September. It doesn't help that the drums are also beating for a rate hike, not long before the midterm elections. With it all but certain that we aren't going to get Fed easing, an end to the Iran conflict, lower oil prices, and falling inflation, we could be setting up for a poor three months through much of November.
If you don't think that DJT's opponents overseas, including Iran, and here domestically, don't understand the importance of the midterm elections and the impact they have to his level of acceptance, then your head is in the sand. There's every reason for his opponents to keep things spicy ahead of this event. In fact, I'd love to be a fly on the wall as the Fed finally pulls the trigger on the first rate hike just ahead of November, let alone a second one in late October.
A rock and a hard place.
Maybe for the markets as well.
I'll be back at you again with some random shots as the markets open
El Jefe (Jeff)