What moved
S&P 500 futures are up 0.8% and Nasdaq 100 futures 0.95% half an hour before the bell, more than recovering Monday's cash session, which ended with the S&P 500 down 0.48% at 7,619.98, the Nasdaq Composite off 0.56% and the Dow 0.29% lower.
Europe has ground back through its own session without quite getting to flat: the FTSE 100 is trading 0.31% lower, the DAX off 0.11%, the CAC 40 down 0.27% and the Euro Stoxx 50 0.15% weaker, all well above their morning lows. Asia closed on the back foot, with the Hang Seng down 1.0%, the Kospi 0.85% lower and the Shanghai Composite off 0.54%; the Nikkei 225 finished all but unchanged.
Why
Monday's US tape was not a sell-off so much as a violent reallocation, and it traces to one document. An essay published at the weekend by Anthropic's chief executive calling for a deliberate slowdown in frontier AI development — echoed by the heads of OpenAI and SpaceX — was read two ways at once. Pure-play security names were bid on the logic that a more dangerous threat environment means more security spending: Zscaler closed 16.52% higher, Tenable 16.51%, CrowdStrike 13.85% and Palo Alto Networks 13.09%. Anything geared to the AI build-out was sold, with Teradyne down 13.30%, Coherent 12.73% and Astera Labs 11.74%; Corning fell 13.70% on its own surprise equity offering, which dragged the optical complex with it. Europe's chip suppliers followed, ASM International down 8.55% and Nokia 10.13%.
Overnight the counter-argument arrived loudly — Nvidia's chief executive publicly disputed the scientific basis of the extinction-risk framing, and the US president, phoned onto the same stage, called AI safety fears a hoax. That is the most plausible reason futures are green, and it is worth being clear that a sentiment reversal on commentary is a thinner foundation than a data-driven one.
Underneath it, the rates story has not budged. The 10-year Treasury yield is 3.9 basis points higher at 5.00%, the 30-year up 4.5 at 5.374%, with the Fed widely expected to lift rates tomorrow for the first time since 2023 as an oil shock keeps inflation sticky. Higher long yields compress the present value of distant profits, which is precisely what long-duration tech is made of.
Sentiment & risk appetite
The stress is in rates, not equities. The VIX is 17.0, barely changed and roughly half its 52-week high, while the MOVE index of Treasury volatility closed 2.06% higher on Monday and is up 10.2% over five sessions. Sector dispersion tells the rotation story better than the index level: communication services gained 2.19% on Monday against technology's 1.81% loss, a four-point spread on a day the S&P 500 moved half a point. Breadth was the tell that this was not a broad bid — on PrimerIQ's US universe, 3,143 names fell against 2,661 that rose. There is no defensive scramble either: gold is 0.69% lower at $4,321.90, some 23% below its 52-week high, and the dollar index is up just 0.13%, with the yen the weak link as USD/JPY firms 0.96% to 154.90.
Economic calendar
The New York Fed's Empire State manufacturing survey for September came in at 7.6, down sharply from 20.6 and short of a consensus near 13.5 — positive, but a clear loss of momentum in factory conditions, and a data point that sits awkwardly beside a Fed about to tighten. The ADP weekly employment change is also due this morning.
The main event is not today: the FOMC begins its two-day meeting now, with the decision and Chair Warsh's press conference tomorrow afternoon from 2pm ET. Energy is the reason expectations have moved so far — WTI crude is 0.94% higher at $102.34 and up 6.6% over five sessions after Saudi Arabia shut the east-west pipeline that bypasses the Strait of Hormuz, with repairs reported to take weeks.
Earnings
Little of consequence has landed before the bell. Forgent Power Solutions reported ahead of the open with earnings of 25 cents a share against a 22-cent consensus, a 13.6% beat, alongside record fourth-quarter and full-year figures that it said exceeded the top of guidance. The day's more meaningful test comes after the close.