The S&P 500 closed at an all-time high of 7,501.24 on Thursday. The Nasdaq printed a record too. The Dow? Pulled back, but still north of 49,600. From a screenshot, it looks like everything is working.
From under the hood, it’s not.
Nomura’s volatility attribution desk just published the breakdown of the index’s 28-session rally to that record close. Ten stocks did 69% of the work. The other 490 split the remaining 31%. That’s the narrowest leadership profile since the dot-com era, and Goldman’s research desk has the breadth data to back it up — the share of S&P 500 stocks trading above their own 50-day moving average has been falling even as the index melts higher.
It gets more concentrated. Just three companies — Alphabet, Amazon, and Meta — are projected to deliver 70% of the entire S&P 500’s earnings growth in 2026. The other 497? A rounding error.
What the futures are saying
S&P 500 futures are down roughly 1.1% pre-market this morning. Nasdaq futures down 1.5%. Polymarket’s open-direction contract is pricing a 99% probability the S&P opens lower today. Some of that is normal Friday profit-taking after a record. Some of it is what Goldman called the “dispersion premium” finally showing up — investors who’ve been long the megacaps are starting to wonder what happens if even one of them stumbles.
The bearish read: this looks like late-1999. Narrow leadership. AI capex hype. Megacaps making the index look stronger than the market really is. One disappointment and the whole thing rolls over.
The bullish read: the AI capex story is real, and last night’s Applied Materials print proved it. AMAT — the company that builds the machines that make every leading-edge chip — reported record revenue of $7.91B, guided Q3 to $8.95B, and told Wall Street its semiconductor equipment business will grow more than 30% in calendar 2026. That’s not hopium. That’s contracted backlog.
The Play
You don’t bail because the rally is narrow. You spread the bet so you survive if one of the ten stumbles.
Three layers of AI exposure that aren’t the Magnificent Few:
- Semi-equipment. AMAT, LRCX, KLAC. The picks-and-shovels trade with contracted multi-year visibility. AMAT just guided 30%+ growth for 2026 — the others are on the same wave.
- Optical interconnect. LITE, COHR. Nvidia put $4 billion into them in March, and a smaller name (POET, which we cover below) just got a $500M supply deal from Lumilens. This is where copper is getting replaced by light inside AI data centers.
- Power infrastructure. VRT, ETN. Every AI data center needs cooling and power. Hyperscaler capex is on pace to hit roughly $610B in 2026 — up about 36% YoY — and almost none of those dollars touches the megacap names directly.
The trade isn’t to fight the leadership. It’s to be exposed to the dollar that flows from the leadership to everyone else.