Mega-cap tech carries the Nasdaq to a record against a 5.31% 10-year yield

A roughly 1% gain in the Nasdaq against 0.18% for the Dow is a gap of 0.82 percentage points. The tech-heavy index rose more than five times as far as the blue-chip average ^[3][4][19]. The report credits heavyweight technology companies such as Nvidia, Meta Platforms and Microsoft ^[2]. It does not include breadth figures, such as advancing against declining shares, so the argument that buyers put their money into a short list depends on that index gap and those names.

Rates moved the opposite way to Fed expectations ^[5][8]. CME FedWatch put the chance of an October rate increase at about 24%, down from 64% a week earlier, a fall of 40 points ^[8][20]. The 10-year Treasury yield still rose 3.4 basis points to 5.31% ^[5]. A December move remains largely priced in ^[8]. The report ties the pressure on long-term borrowing costs to deteriorating public finances, heavy debt issuance and elevated energy prices ^[6].

Lisa Shalett, chief investment officer of Morgan Stanley Wealth Management, set out the equity case in an email ^[9]. "Relative equity market calm amid the bond market's 'perfect storm' is understandable, given accelerating economic growth and the AI boom's rate insensitivity," she said ^[9]. Rate insensitivity is a claim about the earnings of the companies at the center of the AI build-out. Nvidia, Meta and Microsoft, the names credited with Monday's gain, are among them ^[2].

If the softer jobs data works its way into the long end, the 10-year falls and buying can spread beyond tech. If long yields keep rising on debt supply and energy, investors keep adding to the AI group and buy little else. Or the stress could show up in currencies first. I think the middle case is the one Monday's evidence supports, because the 10-year rose on the same day the market cut its odds of an October hike by 40 points ^[5][20]. BlackRock Investment Institute strategists see the policy outlook differently ^[15]. "With markets pricing more Fed tightening than we think will materialize, there is limited scope for a sustained dollar bull run," they wrote in a note on Monday ^[15].

The view fails in one direction if the 10-year starts following Fed odds lower. It fails in the other if the dollar keeps climbing on European stress. Shalett's team listed dollar strength and currency volatility among its three stress gauges, alongside equity and earnings-revision breadth and high-yield bond spreads ^[10]. The dollar index rose 0.2% on Monday, helped by the euro's slide and by Treasury yields ^[12]. The premium on French 10-year debt over German bonds went above 150 basis points on Friday ^[13]. "France is the real deal in terms of risk premia for the euro," said Neil Wilson, a strategist at Saxo ^[16].