US stocks fall as oil tops $107 and yields climb on Fed bets

US stocks fell as oil topped $107 and Treasury yields rose. Iran risks pushed traders toward higher US rate expectations across markets.

The moves followed Tehran's refusal to soften conditions for reopening the Strait of Hormuz and mixed signals from President Trump on additional talks. Brent crude moved above $107 a barrel after those developments, putting energy costs back at the center of inflation pricing.

Oil lifts rate expectations

Treasuries fell across the curve, with the two-year yield rising five basis points to 4.91% as prices declined across maturities. Traders increased bets on US rate increases, with market pricing showing about a 70% probability of a Federal Reserve hike next month, up from about 65% on Friday.

The oil move matters because energy prices feed quickly into headline inflation measures and household expectations. A gauge of average global bond yields rose above 4% last week for the first time since 2007, keeping borrowing costs near multi-decade highs.

Laurent Lamagnere at AlphaValue said the combination was weighing on risk appetite: "A lot is moving against equities at the moment: oil is on the rise and bond yields are going through the roof." He added: "It’s quite hard for me to be optimistic."

Tech futures trail Europe

Nasdaq 100 futures fell 0.9%, more than the 0.4% drop in S&P 500 contracts. Chipmakers were among the largest decliners in Asian trading, a sign that higher rate expectations were pressing hardest on growth-sensitive parts of the market.

Europe's Stoxx 600 moved the other way, gaining 0.4% as consumer shares advanced. The dollar was mixed, while gold recorded its biggest fall in a month and extended its September decline to more than 6%.

Gold's weakness followed the rise in yields, which changes the comparison for an asset that pays no income. When government debt offers higher returns, the opportunity cost of holding bullion rises for investors who measure portfolios against cash and bonds.

UK builders break higher

UK homebuilders stood apart from the broader risk-off tone after the government announced a loan program aimed at first-time buyers. Taylor Wimpey Plc rose 14%, Persimmon Plc gained 15% and Barratt Redrow Plc advanced 14% after the announcement.

The reaction showed how local policy can offset global pressure when the mechanism is direct. Lower entry barriers for first-time buyers can support transaction volumes, while higher yields work in the opposite direction by raising mortgage costs and developers' financing expenses.

Hormuz talks set market paths

If talks over the Strait of Hormuz resume and oil holds below the recent $107 level, the global macro effect would likely run through softer inflation expectations and less pressure on bond yields. For companies such as Taylor Wimpey, Persimmon and Barratt Redrow, lower rate pressure would support the policy boost from buyer loans; for equities, rate-sensitive sectors would have more room to stabilize.

If Tehran's conditions keep the waterway at risk and Brent stays elevated, the mechanism runs the other way. Global inflation expectations would face renewed pressure, the company-level effect would show up through higher financing and input costs, and energy-intensive sectors would have less protection from weaker demand.

The immediate test is whether oil prices stay high enough to keep the Federal Reserve hike probability near 70% before next month's decision. Markets are also watching whether President Trump's signals turn into formal negotiations or leave traders pricing the conflict mainly through energy and rates.