S&P 500 (Tue)
7,764.64
flat · wk +1.5%
The Nasdaq has closed at a record two days running and the fear gauge is at its lowest since December. Underneath, more stocks are making new lows than new highs — and this morning’s red-hot business survey just sent the 10-year back above 5%.
A week ago this column described a market narrowing into the Fed decision. The Fed hiked, the market survived, and on Monday the tape did something that looked like the opposite of narrowing: the Nasdaq jumped 2.3% to a record close, the chip index ripped more than 4%, and AMD briefly became a trillion-dollar company. On Tuesday the Nasdaq set another record. By the headline numbers, momentum is back.
A momentum check exists to ask the next question — how many stocks are actually carrying it? — and the answer this week is the same uncomfortable one, only more extreme. The index is being lifted by a handful of very large names while the rest of the market quietly bleeds. And this morning the one force that can break a narrow rally fastest, the bond market, woke back up.
The rally had a clear trigger and a clear leader. On Monday President Trump signaled openness to meeting Iran’s leadership around the UN General Assembly, and oil — which had peaked near $106 a barrel on Sept. 15 — fell another 4.5%. Lower crude means a lower inflation threat, and the market did what it has done all year with good inflation news: it bought the AI complex. The Philadelphia Semiconductor Index rose 4.3%. AMD gained 10% and touched a $1 trillion market value for the first time. Intel jumped 12% and Arm 17%. Meta, meanwhile, posted its best day since April 2025, up 11.4%, after unveiling a new AI agent called Muse that the market read as fresh demand for compute.
Tuesday followed through more quietly. Oil fell for a fifth straight session as Saudi Arabia restarted its East-West pipeline and Tehran hinted at reopening Hormuz. The Nasdaq added 0.4% to another record, the chip fund SMH closed at its highest level since July, and the VIX slid to 14.21, its lowest close since Dec. 29. Last week’s broken leadership — the semis that lost nearly 6% on the AI-safety scare — has been repaired in two sessions.
Here is the part the record headlines leave out. On Monday, the day the S&P 500 gained 1.5%, the equal-weight S&P — the same 500 stocks, each counted the same — rose just 0.2%. On the New York Stock Exchange, 127 stocks hit new 52-week lows against only 20 new highs. That is an unusual reading on a big up day, and it did not repair on Tuesday: 97 new lows against 21 new highs, even with the Nasdaq at a record.
When the index rises and the number of stocks making new lows rises with it, the rally is being carried across a narrow bridge — a few mega-caps doing the walking for everyone. That can persist for a while, especially when the leaders have real earnings behind them, as the chip names do. But it leaves the market fragile in a specific way: it only takes a wobble in the handful of leaders to take the whole index with it, because there is very little underneath to catch the fall.
| Momentum signal | Reading |
|---|---|
| Leadership (semis) | Re-ignited — SOX +4.3% Mon |
| Concentration | Extreme — equal-weight lagging |
| Breadth (NYSE highs vs. lows) | Negative — 21 vs. 97 Tue |
| Volatility | Complacent — VIX 14.21 |
| Rates | The threat — 10-yr back over 5% |
At 9:45 a.m. Eastern, S&P Global’s flash PMI landed and it was not close. The composite index jumped to 58.4 from 56.0, against roughly 55 expected — the fastest pace of private-sector growth in more than five years. Services rose to 58.7; manufacturing to 57.0 against a 53.6 forecast. Firms are hiring at a rate not seen since mid-2022. And the inflation tail is the problem: input costs are rising at their steepest pace in about four years, driven by fuel and transport.
For a market that just watched the Fed hike and print a dot plot pointing higher, a booming economy with rising costs is not good news. It is an argument for another hike. The 10-year Treasury, which had eased to about 4.97% on Tuesday, is pushing back above 5% this morning, and gold is selling off as real yields climb. This is exactly the setup that punishes a narrow, long-duration-led rally: the leaders are the stocks most sensitive to the discount rate.
The test is simple. If the index can absorb a 5%-plus 10-year with the chips holding most of Monday’s gains, the leadership is genuine and the narrow bridge can carry more traffic. If the semis give back their rally and small caps — the Russell 2000 has the weakest balance sheets and the most floating-rate debt — lead the decline, then the last two days were a relief bounce in a market whose internals never healed. Watch the equal-weight S&P and the new-lows count, not the Nasdaq print.
On the surface momentum has returned: the Nasdaq set back-to-back records, the chip leadership that broke last week has been rebuilt, and the VIX sits at a nine-month low. Underneath, breadth is worse than it was before the Fed — equal-weight lagging badly and new lows outnumbering new highs even on record days. This morning’s five-year-high PMI and hot input costs just pushed the 10-year back above 5%, the one force that can tip a narrow, rate-sensitive rally. Respect the leaders, but trust breadth: until more stocks join, this is a rally on a narrow bridge.