Hello everyone, welcome back to the U.S. stock analysis channel. I'm lorder.

Today is September 15, 2026. Something big happened over the weekend — the CEOs of three AI giants — OpenAI, xAI, and Anthropic — joined forces to call for a slowdown in AI development, citing safety concerns. Today the Nasdaq opened sharply lower, and the Philadelphia Semiconductor Index fared even worse, plunging 5.86% intraday with all thirty component stocks in the red.

On the flip side, cybersecurity stocks rallied hard, lifting the entire software sector on heavy volume. The financial sector felt some mild pressure after Bank of America warned at the Barclays conference that it expects sales and trading revenue to be roughly flat versus a year ago.

There were a few other pieces of bad news today: international crude oil pulled back from highs but stayed above $100; the 10-year Treasury yield touched 5% intraday and closed at 4.996%; and money markets now price a 92% probability of a 25-basis-point rate hike at Wednesday's Fed meeting. Whether AI ends humanity or not, it sure seems to be working on ending the stock market.

Let me get to the conclusion first: stay cautious, and expect structural divergence.

AI regulation is the core event from the weekend. The CEOs of three major AI companies called for a slowdown in development. My read on this: it's a "slowdown," not a "halt." It's a long-term negative for semiconductors, but for the four big tech giants — Microsoft, Google, Meta, and Amazon — it's actually neutral to slightly positive, because it eases their capital expenditure pressure.

In the short term, the market has entered a "regulatory expectation digestion period." Indices are chopping sideways; don't chase highs, but there's no need for panic selling either.

Some of you think the sky is falling — are we heading into another recession? No, we're nowhere near that. Others see stocks down quite a bit and wonder if it's time to buy the dip — but you need to be careful, because there are new dynamics at play here, some shifting adjustments. Today I may not be able to give clean answers on many individual names, but there are some angles worth thinking through, and we can reason through them together.

There were some things last week I didn't get to. Today, let's get the logic straight first, and then we can talk about individual stocks and where the market goes from here.

First, the broader market. The Nasdaq closed down 0.48%, holding in the 745 to 756 range. Wide swings, but the position hasn't changed — it's a sideways consolidation, no directional shift. This pattern is classic for a policy-waiting period.

The Philadelphia Semiconductor Index today fell from the top of its range to the bottom, down 5.86% intraday. But the 486 platform support below held, which means the medium-term structure hasn't been broken. The short term is now a wait-and-see period. Two consecutive tests of the upper downtrend line have failed to break through; the resistance is confirmed.

On the software side, IGV rallied on volume, boosted by the AI slowdown news, closing at $106. But the key 107 resistance level wasn't taken — it fell just short, by $0.1. A breakout only counts once confirmed by a closing price; until then, it's not a successful breakout. Today's move can be read as AI slowing down giving the software sector a "breather."

The 10-year Treasury yield touched the 5% psychological level intraday, pressuring high-valuation growth stocks. It closed at 4.996%, essentially hugging 5% at the close.

International crude held above $100, pulling back from highs but defending that level.

Nvidia is around $211 now, at a relatively low position. Even on a 20 to 30 times valuation, it sits below the midpoint — a genuinely undemanding valuation.

QQQ opened at $703 today — a lower open, but it didn't break the key 702 support level. There was buying after the lower open, but the late-session slide shows bulls lack conviction. 702 is the short-term line between bulls and bears; a break below would trigger a notable weakening signal.

Some of you are asking — stocks are down a lot today, is it time to get in? Here I have to say a bit more: many of these names simply fell from elevated highs down to support, without any major breakdown. Their positioning hasn't really changed. So don't rush in. Until the logic is clear, the fewer moves you make, the better.

Philadelphia Semiconductor trend-line analysis: two consecutive sessions tested the upper downtrend line and failed, confirming resistance. Today one candle dropped from the upper boundary to the lower boundary, but the 486 platform below hasn't been lost, so the medium-term structure is intact.

IGV key level: the software sector rallied on volume on the news, but closed at 106, failing to take the 107 resistance — short by $0.1. Like I said, a dime is a dime. Breakout validity must be confirmed by the closing price.

QQQ support test: opened lower at 703 today but didn't break the 702 dividing line; it was bought back after the lower open. The late-day slide shows limited rebound strength. 702 is the bull-bear dividing line.

Index range: trading in a narrow 745 to 756 band; from a closing-price standpoint, it's a sideways consolidation pattern. Big swings but no directional breakout — a textbook policy-waiting period.

Now the quant signals. The CTA trigger level moved down from 7642 to 7399, with 6902 further below. Short-term selling pressure: in a sideways scenario, $4.2 billion of buying; in an up scenario, $21.5 billion of buying; in a down scenario, $72.9 billion of selling. That tells us quant money amplifies selling significantly in a down scenario — declines can accelerate quickly.

Let me spell out the risks clearly.

First, the risk of AI regulation accelerating. Senators from both parties jointly introduced the Crow-Bouchard-Cruz-Thune Act, which could come up as early as this week. If a substantive regulatory framework emerges, the forward growth expectations for semiconductors would be systematically revised down.

Second, CTA quant selling pressure. If the market falls over the next month, quant money is expected to sell $72.9 billion. Selling in a down scenario is 3.4 times the level in an up scenario; short-term volatility could be amplified.

Third, Fed rate hike risk. Money markets price a 92% probability of a 25-basis-point hike at Wednesday's meeting. Combined with the 10-year yield touching 5%, high-valuation growth stocks face double pressure.

Fourth, enterprise AI adoption slower than expected. OpenAI CEO Sam Altman has already admitted misjudging the pace of enterprise adoption. If capital expenditure growth keeps diverging from real demand, there's downside risk to the high-growth semiconductor expectations.

Fifth, geopolitical variables. AI regulation involves U.S.-China rivalry. China has explicitly rebutted the idea of pausing AI development, so global regulatory coordination faces major uncertainty.

This week, we wait for the Fed meeting. The September quarterly meeting includes not just the rate decision but also economic projections — inflation, unemployment, and short-, medium-, and long-term rate outlooks — with fairly concrete numbers. Once we have the data, we can speak with more clarity.

September's bumpiness isn't over. It's still the same advice: if you can't read the moves and feel like you're on a roller coaster going back and forth, then just don't move, don't participate. This kind of short-term trading — up today, down tomorrow, back up the day after — is very hard to time. Day-trading every single session will just leave you dizzy.

That's it for today. See you all tomorrow, same time, same place.