Treasury buybacks ironically push long-term bond yields higher, PPI inflation heats up yet gold prices rise: Will tonight's US CPI come in above expectations?

Last night (September 10) was the most information-dense and most contradictory day for global markets in nearly a month: the U.S. Treasury raised the size of its single long-bond buyback from the previously announced $4 billion to $6 billion, yet the 10-year Treasury yield rose that day to 4.85%, a new high since November 2023; U.S. August PPI rose in line with expectations month-over-month, but the July figure was revised upward by 0.1%, pushing rate-hike odds directly to nearly 70%, while gold briefly fell before reversing to rise, tracing a V-shaped session; last night Europe was hardly quiet either. The European Central Bank announced simultaneous 25 basis point hikes across its three key rates, lifting the deposit facility rate to 2.50%, its second hike this year; neighboring Japan's central bank is also poised to act, with market pricing putting the probability of a 25 basis point hike to 1.25% next week at roughly 97%. From Frankfurt to Washington to Tokyo, the world's major central banks have rarely stood on the same tightening path at once. All eyes are now fixed on tonight's U.S. CPI release.

1. Market Contradiction One: A $6 Billion Buyback Lands, Yet Yields Hit a New High

Bessent's buyback amount was triple the usual operation, yet still fell short of market expectations? On August 19, Bessent first announced raising the single long-term Treasury buyback size from $2 billion to "at least $4 billion," and last night the actual buyback amount landed even higher at $6 billion. Yet the market sold long bonds even cheaper—the 10-year U.S. Treasury yield rose as high as 4.85%, a new high since November 2023; the 30-year climbed above 5.3%. The main driver of this selloff was not inflation expectations, but the fact that buyers are systematically retreating—demand for Treasuries is collapsing.

First, sovereign funds are pulling out. Norway's sovereign wealth fund, the world's largest (AUM of roughly $2.34 trillion, holding about $215 billion in Treasuries), wrote to Norway's Ministry of Finance on September 1 proposing to cut the weight of government bonds in its benchmark index from 70% to 50% and its Treasury allocation from 34.1% to 21.9%, corresponding to a reduction of about $80 billion, with funds rotating into corporate bonds and MBS. Wall Street's "big bull" on Treasuries for 40 consecutive years, Lacy Hunt, has also turned bearish, cutting his portfolio duration from about 21 years to less than 1 year.

Second, yen rate hikes are siphoning away the largest block of overseas buying. Japan holds about $1.1 trillion in Treasuries, making it the largest overseas holder. The probability of the Bank of Japan hiking 25 basis points to 1.25% in September has reached about 97%; with domestic risk-free yields rising, carry-trade funds that once borrowed cheap yen to buy Treasuries are now flowing back. By May 2026, Japan's holdings had already fallen to $1.143 trillion, a single-month decrease of about $67 billion; in June, Japan and the UK reduced holdings by $26.4 billion and $8.7 billion respectively, while Turkey nearly emptied its entire position.

Third, while demand contracts, supply keeps expanding. The fiscal 2026 federal deficit is projected at roughly $1.9 trillion to $2.1 trillion, compounded by refinancing of existing debt and tech-company issuance; meanwhile, the share of "price-insensitive" buyers such as central banks and reserve managers is declining while private investors' share rises, meaning the same scale of selling inflicts a larger price shock. Saxo Bank chief investment strategist Charu Chanana's judgment: due to inflation, fiscal risks, and heavy issuance, bond investors are demanding a higher risk premium, and the probability of the 10-year Treasury yield rising to 5% is growing. So "a buyback that pushes yields up" is not a technical accident but a public vote—what the market fears is not interest rates, but the creditworthiness of the U.S. government.

2. Market Contradiction Two: PPI Pushes Inflation Higher, Yet Gold Slides Then Rebounds?

What did last night's PPI release show? What impact does the upward revision to July data have on gold? U.S. August PPI rose 0.4% month-over-month, in line with expectations, and 5.4% year-over-year, slightly above the expected 5.3%. What truly rattled the market was the revision: July PPI month-over-month was revised up from previously reported flat to 0.1%, and year-over-year from 4.7% to 4.8%, with two consecutive months of upward revision read by the market as intensifying the inflation trend. Rate-hike expectations quickly heated up, and Treasury yields soared accordingly. As a non-yielding asset, gold's opportunity cost of holding surged, compounded by a stronger dollar, forcing it into a selloff: as soon as the PPI data was released last night, gold prices intraday plunged to $4,324.23, closing down 1.91% at $4,314.82 in New York's late session. So what exactly are the bearish signals weighing on gold right now?

First, elevated Treasury yields. The 10-year rose to 4.93% and the 30-year topped 5.35%, raising the opportunity cost of holding a non-yielding asset.

Second, rising global rate-hike expectations. The probability of a September Fed hike rose to 74%, the ECB has already hiked 25 basis points, and the probability of a BOJ hike next week is about 97%—the rate center is shifting higher across the board.

Third, high oil prices. Brent crude broke above $100 and briefly touched $105, fueling inflation expectations while also supporting the dollar. It was precisely these three factors that last night drove gold from $4,434 down to $4,314.

But over a longer time horizon, these three bearish factors are precisely gold's strongest endorsement. After 2022, gold's pricing anchor shifted from real interest rates to the 30-year minus 2-year Treasury term spread; the structural rise in ultra-long bond yields implies more a dollar credit problem—concerns over U.S. fiscal sustainability and Fed independence; higher yields no longer mean dollar assets are more attractive, but rather expose the fragility of U.S. finances. Likewise, when central banks are forced to hike due to supply-side shocks, the stronger the rate-hike expectations, the more they indirectly confirm how stubborn inflation is, and monetary policy can do nothing about oil prices or chip capacity. As for high oil prices themselves, while they push up inflation expectations, they also mean real assets are being repriced—former Goldman Sachs head of commodities research Jeff Currie believes global capital is fleeing traditional financial assets, and a supercycle led by hard assets such as gold and energy has only just begun.

3. The Pricing Anchor for Long-Term Gold Appreciation Is "U.S. Fiscal Credit"

The market no longer trades gold as a purely interest-rate-sensitive asset. The core variable driving gold prices is shifting from the Fed's policy rate to the sustainability of U.S. fiscal policy. U.S. federal debt has surpassed $40 trillion, with annual interest payments of about $1.1 trillion—already exceeding defense spending—and the government is trapped in a spiral where "the more debt balloons, the higher the interest burden, the more new debt must be issued"; when the Fed keeps rates high to curb inflation while the Treasury relies on continuous issuance to fill the deficit, the market begins to seriously question whether the credit foundation of the dollar remains stable.

The flow of safe-haven assets is being reshaped: Treasuries "fall," gold "feasts." After the Treasury expanded its buyback size, the 30-year Treasury yield dipped only briefly before recovering again in less than 24 hours, with investors voting with their feet to express distrust of this maneuver. Meanwhile, global central banks are voting with real money: by the end of 2025, gold's share of global official reserves rose to 27% versus just 22% for Treasuries—the first time since the mid-1990s that gold has reclaimed its status as the world's largest official reserve asset; in Q2 2026, global central banks bought 288.9 tonnes of gold, up 62.4% year-over-year and surging 411.1% quarter-over-quarter, with China's central bank increasing holdings for a 22nd consecutive month and its August purchase setting a single-month record for this cycle, while South Korea's central bank restarted gold purchases for the first time in 13 years. The logic of national reserve management is shifting from "return first" to "safety first."

That is why gold exhibits a layered market: "short-term driven by rates, medium-term driven by central banks." In the short cycle, gold prices are pulled by yields and the dollar—a PPI beat can knock it down by more than $100; in the medium-to-long cycle, what supports it is the repricing of sovereign credit, a process almost unrelated to any single month's data. TD Securities judges that even if the Fed turns more hawkish, it may only delay gold's next rally rather than trigger a sustained selloff; Donghai Securities characterizes this decline as a structural correction within a long-term bull market. As Jeff Currie put it: "The core issue has always been currency debasement and financial repression—that is precisely the fundamental reason we hold gold."

4. Key Anticipation: Will Tonight's U.S. CPI Beat Expectations? Three Scenarios and Signals to Watch

Tonight's U.S. August CPI release at 20:30 Beijing time is the next verification point for this main narrative and the last key puzzle piece before next week's Fed meeting. It matters more than usual for three reasons: first, PPI has already put on the table the fact that "inflation has been picking up since July," and this time the market will look not only at the August reading but also at whether prior months show similar upward revisions—the "catch-up" from data revisions often changes policy expectations more than the current month's figure; second, energy transmits into CPI more directly than into PPI, with diesel's 24.1% single-month gain and Brent above $105 feeding directly into household prices through gasoline and transportation components; third, PPI showed a split structure of "headline beat, core moderate," and whether that structure replicates in CPI will determine whether the market reads this inflation round as "a one-off oil price shock" or "broad-based price diffusion."

Scenario One: Both headline and core beat expectations. This is the most painful combination for gold. September rate-hike odds could surge from 74% toward above 90%, the 10-year Treasury yield will formally challenge the 5% threshold, and gold could test $4,300—TD Securities specifically warns that if it decisively breaks $4,300, selling pressure from systematic funds could intensify notably, with $4,280 or even $4,260 below becoming the new battleground. Note that Treasuries may not benefit in this scenario: rate-hike expectations and fiscal risk premiums stacking in the same direction would actually make the long end fall faster.

Scenario Two: Headline beats, core moderate—replicating the PPI structure. This may be the higher-probability outcome. The market would read it as a one-off supply-side shock, rate-hike expectations would struggle to push higher, and a weaker dollar would free up valuation-recovery room for gold, which would likely continue seesawing in the $4,300–$4,360 range, with $4,340–$4,360 above forming the first rebound resistance band; if the rebound stalls, bears could strike again. Direction unclear, but volatility significant.

Scenario Three: Both headline and core come in below expectations. Gold would see a decent short-term rebound, Treasury yields would retreat, and rate-hike pricing would cool. But be clear-eyed: one month of CPI cannot change the $40 trillion debt stock, the $1.9 trillion deficit, or the $1.1 trillion in annual interest payments, nor can it change Norway's sovereign fund reduction plan or the unwinding of the yen carry trade. Data can ease pressure on the rate side, but not on the credit side.

Last night's two contradictions point to the same answer: the market is repricing "safety." When buybacks cannot buy back trust, rate hikes cannot suppress oil prices, and inflation cannot hold up gold, what is truly being traded is no longer any single data point, but the failure of an entire old framework. Tonight's U.S. CPI will provide a short-term direction, but not a conclusion—the conclusion will only emerge after this round of reshaping the global reserve asset landscape has run its course.

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