Bessent’s Bond Buys Prop Up Wall Street’s August Rally

U.S. stock futures slipped Monday after American forces struck two Iranian rocket launchers on Larak Island, and oil jumped on the news.

The drop is modest. CNBC’s month-to-date tally still has the Dow up 2.1%, on track for a fifth straight monthly gain. Treasury Secretary Scott Bessent has told the market he will at least double long-bond buybacks, and those operations have not started.

Two Launchers on Larak Island Reopened the Oil Trade

U.S. forces hit two Iranian launchers on Larak Island on Sunday after Central Command said Islamic Revolutionary Guard Corps units were preparing to fire rockets carrying sea mines into the Strait of Hormuz, the first publicly acknowledged American strike on Iranian positions since late July. Navy Capt. Tim Hawkins, a CENTCOM spokesman, told outlets including Newsweek that U.S. forces had finished clearing mines from the strait’s international shipping routes last week and would keep watching the waterway.

Iran’s semi-official Tasnim news agency said a drone strike killed two people and injured two others, figures it labeled preliminary. The IRGC said soldiers and civilians were among the casualties and promised “response and punishment.” Hossein Mohebbi, an IRGC spokesman, called the attack a “strategic and fatal mistake” and said the United States would pay in both the economic and military fields, according to the BBC.

Iranian state media then said Tehran fired ballistic missiles at the King Hussein and Al Azraq air bases in Jordan. A U.S. source told Fox News that almost all incoming missiles had been intercepted, with no significant damage reported. CNBC-TV18 later said Iran also struck at sites in the UAE; Reuters, in a Monday brief, said the UAE reported dealing with a drone coming from Iran. Reuters counted 18 U.S. service members killed since the war began on February 28.

In Asia, the scare was sharper at the open than at the close. South Korea’s Kospi was down more than 3% in early dealing, then finished 0.46% higher at 6,820.02, according to CNBC. Japan’s Nikkei 225 closed 0.14% lower at 66,311.93. Reuters, in the Sydney hours, had Brent crude up 2.7% at $90.51 a barrel and U.S. crude up 2.6% at $85.57, with S&P 500 futures down 0.2%. CNBC’s earlier print put West Texas Intermediate 3.4% higher at $86.25 and Brent 3.6% higher at $91.24. U.K. cash markets were shut for a holiday.

Hormuz Traffic Is Still a Fraction of Normal

The market is not pricing a brand-new war. It is pricing a strait that never came back. The International Energy Agency’s Hormuz note says about 20 million barrels a day through Hormuz moved in 2025, including nearly 15 million barrels of crude, or about 34% of global crude trade. A Congressional Research Service report updated August 7 puts Hormuz at roughly 25 percent of maritime oil trade in the same year, plus about 19% of liquefied natural gas.

HORMUZ BEFORE THE WAR AND NOW

President Donald Trump said last week that mines in the strait’s international waters had been detonated or removed and that any boat laying new ones would be destroyed. Iran’s deputy foreign minister, Kazem Gharibabadi, dismissed that claim as an attempt to calm markets and said only Tehran knew where the mines were, Al Jazeera reported. Sunday’s Larak strike is Washington’s answer to that argument: the United States says it caught the IRGC trying to put mines back in.

Traffic has not followed the press releases. El País, using Kpler, said daily transits had fallen from about 130 ships before the war to fewer than 20. An AFP analysis in Al-Monitor put commodity-carrier traffic at about 10 a day after the March closure, against 95 in February, then 15 a day between July 8 and August 22. UKOilWatch, rechecking Kpler around the mine-clear claim, still saw only 8 to 10 visible commodity vessels on some late-August days, roughly 5% to 15% of normal. Politico reported that Treasury last week rolled out “Operation Economic Outcast,” a pressure campaign warning foreign firms they could lose U.S. banking access for dealing with Tehran.

Bessent Has Not Bought a Single Bond Yet

Jefferies chief market strategist David Zervos wrote that the Treasury has become the dominant policy actor in financial conditions, a line CNBC carried in its live blog, because buybacks and possible curve operations can backstop bonds and, behind them, stocks. The problem with that story on Monday is simple. The extra purchases are still on the calendar.

On August 19, a day after the 30-year yield hit a 19-year high, Treasury said it would raise long-end liquidity-support buybacks from $2 billion to at least $4 billion per operation in the 10-year-to-20-year and 20-year-to-30-year sectors, effective September 9 through November 4. Reuters put the added support this quarter at at least $14 billion across the remaining long-end operations, a rounding error against more than $40 trillion of outstanding public debt. Bessent later said operations could exceed $4 billion and that the Treasury had “a big tool kit.”

THE BUYBACK CALENDAR BESSENT IS SELLING

1. August 19, 2026: Treasury announces the long-end maximum will at least double, starting September 9.
2. August 20, 2026: Bessent tells CNBC the size “could be more than the $4 billion per issue” and that yields do not match fundamentals.
3. August 24, 2026: He says auctions will continue as usual and, asked about more buying, answers that “we haven’t bought a single bond yet.”
4. August 30, 2026: In a Reuters interview in Asheville, he says his job is to keep the market orderly, not to set the price, and that the larger operations start September 10, a day after the written effective date.

Charlie McElligott at Nomura called the plan, by itself, a “band-aid on a bullet hole,” the Financial Times reported, arguing it would not placate the long end. Bessent rejects the idea that he is distorting a market that is supposed to run on predictable rules. He compared the criticism to the lack of outrage when Mario Draghi’s ECB and the Bank of Japan bought bonds on a far larger scale.

I don’t think I can change the equilibrium price. My job is to slow things down and make sure that the market doesn’t get disorderly.

Scott Bessent, Treasury secretary, Reuters interview, Asheville, August 30, 2026

He also said he was “not sure where the bond market turmoil is,” calling U.S. Treasuries the “best performing” government market among global peers this year, and blamed high yields on energy prices and the Iran war, forces he expects to fade. That is a stake, not a completed trade. The long end sold off to a 19-year high on the 30-year before the announcement, rallied, then gave the move back. The first enlarged operation is still next week. Until then, the backstop under this equity month is a press release.

The Fed Chair’s Test Is Speed, Not a Pause

Federal Reserve Chair Kevin Warsh, marking his 100th day in the job at Jackson Hole on Friday, went the other way. He kept the firm, fixed 2 percent PCE target and said price stability is not self-executing. He wants “clear market signals, as unfiltered as possible,” a line that sits awkwardly next to a Treasury that is trying to filter the long end. He would be “hard pressed to describe broad financial conditions as restrictive.” Credit spreads are near the low end of their ranges, banks told the Fed that commercial-loan standards are on the easy side of history, and S&P 500 profits are up more than 20% over the past year, he said.

Here is my standard: We must be confident that underlying inflation is moving to our objective, clearly and at sufficient speed. Otherwise, we have work to do. That’s our job… our mandate… and our charge to keep.

Kevin Warsh, Federal Reserve chairman, Jackson Hole, August 28, 2026

WHAT WARSH SAID THE PRICE DATA SHOW

• Headline PCE: The 12-month change is 3.7 percent; the six-month change is 4.1 percent.
• Breadth: Over 12 months, 54 percent of PCE items rose more than 3 percent, against 32 percent in the two decades before the pandemic.
• Duration: He put “65 months of sustained, elevated inflation” on the central bank.
• Jobs: The jobless rate is 4.1 percent, claims are near the lowest in decades, and he called the labor market consistent with full employment.

Summer CPI and PCE prints were better than expected, he said, and “they do not tell me that underlying trends have meaningfully improved.” He also flagged a rise in commodity prices. That is the channel Larak feeds. Barclays economist Jonathan Millar wrote that the hawkish tone makes a 25-basis-point September hike “more likely than not,” with another in December in the bank’s baseline. Reuters said markets priced about a 60% chance of a September increase after the speech, up from roughly 40%. Investor’s Business Daily cited CME FedWatch at 61.5% for a move on September 16, from a target range of 3.50% to 3.75%. The two-year yield jumped almost 12 basis points on Friday and held near 4.34% on Monday, Reuters said. Japan’s two-year yield touched a 31-year high. Germany’s two-year was at its highest since July 2024.

A September hike would not arrive in a vacuum. The yen traded around 160 per dollar on Monday, giving back most of the gains from U.S.-Japan intervention. UBP Asia economist Carlos Casanova put the policy-rate gap at about 275 basis points and said carry trades stay attractive unless the Bank of Japan tightens further or the Fed cuts. Treating Hormuz oil as a demand problem, when Warsh himself says the labor market is already at full employment and claims are historically low, is the weaker reading of his own data. The stronger one is that a supply shock in a chokepoint is now sitting on top of inflation that has been above target for 65 months, and he has told markets he will not wait on a hope that it fades.

Why August Still Looks Like a Win for Stocks

None of that stopped the month from booking gains in the tape CNBC was running Monday. Tech did the work. The S&P 500 technology sector is up nearly 6% in August, CNBC said, with Nvidia up more than 8% and Microsoft and Micron Technology up 11% and 13%. The S&P 500 and Nasdaq were heading for their first up month since May, up 3% and 4%. Both the S&P 500 and the Dow printed all-time highs earlier in the month. Warsh’s own speech helps explain why the tape could ignore a Hormuz headline for most of August: equipment and intangibles investment is running about 9% on a four-quarter basis, more than half of it AI, and token sales at the two leading labs are running at more than $100 billion annualized, up 500-plus percent from a year ago, he said.

AUGUST ON THE BOARD, PER CNBC

Friday’s cash close, from Reuters, was 53,559.99 on the Dow, down 0.02%, 7,711.76 on the S&P 500, down 0.25%, and 26,402.42 on the Nasdaq, down 0.52%, after Warsh spoke. Gold fell with the yield spike; Reuters had it at $4,425 an ounce, down 0.6%, in Monday’s Asia session. China’s official manufacturing PMI rose to 49.8 in August from 49.2, still in contraction, better than a 49.6 forecast, the National Bureau of Statistics said. Factory weakness abroad is not the thing that has Wall Street on edge. Sticky U.S. prices, a Fed chair who says financial conditions are not tight, and a strait that can reprice oil overnight are.

Friday Payrolls Arrive With Hike Odds Near 60%

The August employment report is due Friday morning, with manufacturing and services surveys also on the week’s calendar. Warsh already called the labor market stable and at full employment. A hot payrolls print would make his “work to do” line harder for the September 15-16 meeting to dodge. A soft one would not erase 3.7% PCE or a 2.6% jump in crude. Three regional Fed presidents dissented in favor of a hike in July, the most in one direction since 2016, Euronews noted; the committee held at 3.50% to 3.75% anyway.

Short-term borrowing costs were already rising before Larak. CNBC said two-year yields in Japan, Germany, and France hit multi-year highs on Monday as the strike fed the same inflation scare Warsh had stoked on Friday. The U.S. 10-year was little changed near 4.72%, holding the Jackson Hole jump. Bessent and Warsh were in Asheville together for a G20 finance gathering, a pairing CNBC’s Sara Eisen flagged on Sunday, which is a useful picture of the split. One man is trying to keep the long end from running. The other is telling markets that if inflation does not fall fast enough, short rates go up.

The extra buybacks are still a date, not a trade. Oil is a supply problem in a strait that, on the IEA’s 2025 baseline, carried a fifth of seaborne crude and products, and it is now feeding a Fed chair who has already moved September hike odds to about 60 percent. Wall Street can still close August in the green on Nvidia and Microsoft. The first $4 billion operation is not until next week, the FOMC is two weeks after that, and the ships that used to fill Hormuz have not come back.

Bessent told Reuters he cannot set the equilibrium price. He has not had to, because he has not bought the bonds. Larak made that wait more expensive in the one market that still sets the inflation tape.

Disclaimer: This article is news reporting and analysis of market and policy developments, and it is for information only. It does not constitute investment advice, a recommendation to buy or sell any stock, bond, or commodity, or a prediction of Federal Reserve or Treasury actions. Readers should consult a licensed financial adviser before making any portfolio decision. Figures, implied odds, and policy dates reflect the sources available on August 31, 2026, and may change with the next data release, auction, or official statement.