US equity indexes fell after midday trading on Thursday as bond yields and oil prices surged after President Donald Trump threatened the "most crushing economic operation" on Iran, while also warning of consequences for countries that support or conduct business with Iran.
The bond yield reversal comes a day after the US Treasury decided to boost repurchases of long-dated government debt to $4 billion per operation from September. Treasury Secretary Scott Bessent said the buyback program could exceed $4 billion, and US plans to mount economic pressure on Iran will likely negate the need for further military action, CNBC reported Thursday, citing an interview with the official.
The Nasdaq Composite fell 0.9% to 26,093.6, the S&P 500 declined 0.5% to 7,667.7, and the Dow Jones Industrial Average shed 0.9% to 52,955.2. The energy and real estate sectors led the gainers, while consumer discretionary and consumer staples led the decliners.
The yield on 30-year Treasuries rose 5.4 basis points to 5.248%, while the 10-year yield gained 4.9 basis points to 4.702%.
Gold futures gained 0.4% to $4,565.2 per ounce, and silver futures rose 3.6% to $68.24.
In economic news, the Conference Board's measure of leading indicators rose by 0.2% in July, a larger gain than the 0.1% increase expected in a survey compiled by Bloomberg, and following a 0.1% decrease in June.
The Conference Board highlighted that economic growth is likely to be driven by investments in AI, while consumer spending is forecast to slow down due to the higher living costs.
The Philadelphia Federal Reserve's monthly manufacturing index rose to 47.4 in August, compared with 41.4 in July and an anticipated decrease to a 24.1 print in a survey compiled by Bloomberg.
According to the Labor Department, US initial jobless claims fell to 206,000 in the week ended Aug. 15 from an upwardly revised 212,000 in the week earlier, and lower than the 210,000 expected in a survey of analysts compiled by Bloomberg.
US natural gas stocks rose by 16 billion cubic feet in the week ended Aug. 14, higher than the 15 billion gain expected in a survey compiled by Bloomberg and following an increase of 36 billion cubic feet in the week prior.
The US West Texas Intermediate crude oil contract rose 1.9% to $87.52 per barrel.
In company news, SpaceX (SPCX) approached Cognition AI about a potential acquisition, Bloomberg reported Wednesday, citing people familiar with the matter. There are currently no active deal talks between SpaceX and the AI coding startup, but they continue to discuss a potential collaboration, per the report. SpaceX shares were down 5.9%.
Walmart (WMT) shares fell 8.8% on Thursday after its fiscal 2027 adjusted EPS guidance fell short of analysts' expectations. The company reported fiscal Q2 adjusted earnings of $0.81 per share, up from $0.68 a year earlier and above the FactSet estimate of $0.74. Revenue was $187.94 billion, up from $177.40 billion a year ago and above the FactSet estimate of $186.62 billion. For fiscal 2027, Walmart expects adjusted EPS of $2.80 to $2.87, up from $2.75 to $2.85 earlier, but below the FactSet estimate of $2.90.