Treasury yields climb on debt pressures. The 10-year auction settled at 4.69%, its highest since 2007, despite cooling jobs and inflation data, as record U.S. debt issuance tightens financial conditions regardless of Fed moves.
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Copper shortages challenge AI growth. Spot copper now trades at a record $478/ton premium over futures, with inventories at 15-year lows, threatening delays in data center builds tied to Wall Street’s $500 billion AI infrastructure push.
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OPEC+ supply hike fails to ease oil prices. An added 188,000 barrels/day in September left Brent crude steady at $90.99, as tensions near the Strait of Hormuz keep upward pressure on energy costs.
What's going on today
Treasury yields and stock resilience told two different stories Tuesday, highlighting a market split between fiscal realities and growth hopes.
The bond selloff picked up speed as the 10-year Treasury auction closed at 4.69%, its highest yield since late 2007, while the 30-year hit 5.25%. The move came even as July jobs and inflation reports softened, data that would normally ease long-term rates. Instead, debt dynamics led the charge: U.S. borrowing, set to top $1.6 trillion this year, pushed yields higher, tightening financial conditions without any Fed action.
Stocks held firmer ground, with the S&P 500 dipping just 0.17% Monday, while the Nasdaq kept a 1.09% weekly gain. But beneath the surface, sectors diverged sharply. AMD rose 6.5% on strong AI chip demand, while Broadcom dropped 5.9% after reports that its $370 billion AI financing platform faced setbacks from copper shortages and rising costs. The split underscores a critical issue: LME copper stockpiles are at 15-year lows, with spot prices commanding a $478/ton premium over futures, a record gap pointing to severe physical shortages. For data centers, which need roughly 50,000 tons of copper per large-scale facility, the bottleneck risks slowing AI infrastructure rollouts despite heavy investment.
Oil markets stayed focused on geopolitics. OPEC+ confirmed it will fully reverse its last voluntary production cut in September, adding 188,000 barrels/day to global supply. Yet Brent crude remained at $90.99, up 2.34% for the week, as traders factored in ongoing risks, including Iran’s threats to Oman and rising tensions near the Strait of Hormuz. The stalemate helped energy stocks, with the XLE energy ETF up 7.67% over five sessions and Schlumberger gaining 3.3% Monday on higher drilling demand.
The common thread: rising costs.. Higher Treasury yields lift borrowing expenses, copper shortages inflate data center budgets, and geopolitical friction keeps energy prices elevated. The Fed may pause in September, but the market’s quiet tightening is already in motion.
The big story
Copper’s record premium reveals AI’s physical limits
LME cash copper ended Monday at $14,830 per ton, trading at a $478/ton premium over three-month futures, the widest gap since 2021 and a clear sign of severe physical shortages. With global stockpiles down to about 200,000 tons, a 15-year low, the message is clear: AI’s rapid growth is running into a hard copper supply wall.
Why it matters:. Copper is the backbone of AI infrastructure. A single large-scale data center needs around 50,000 tons of the metal, roughly 2.5 kilograms per kilowatt of capacity. With AI demand surging, data centers now use 400,000 tons annually, a figure expected to hit 572,000 tons by 2028. The catch? New mines take 10 to 17 years to develop, while data centers can be built in 18 to 23 months. The mismatch creates a structural bottleneck.
The economic impact is already showing:
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Higher construction costs: Copper now makes up 2 to 3% of data center budgets, up from about 1% in 2023. For a $500 billion financing plan, that adds $10 to $15 billion in unexpected costs.
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Riskier financing: AI infrastructure bonds, often backed by data center cash flows, face downgrade risks as copper costs cut into margins. Investors will likely demand higher yields, raising borrowing costs across the sector.
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Slower expansion: Some projects may be delayed or scaled back, pushing out the productivity gains that the Fed and markets have tied to AI-driven growth.
The gap between financial markets and physical constraints is widening. AMD shares climbed 6.5% this week, and Nvidia still trades at 45 times earnings, assuming uninterrupted growth. But copper’s premium tells a different story: the real world is pushing back against Wall Street’s timelines.
Key levels to monitor:
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LME stockpiles below 180,000 tons or a spot-futures premium above $500/ton would signal deeper scarcity.
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Stockpiles recovering above 250,000 tons would ease pressure, but no major mine expansions are on the horizon.
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Rising AI infrastructure bond yields would confirm financing strains.
Copper is no longer just a commodity. It’s now the speed limit on AI’s growth engine.
The big picture
Bonds tighten as the Fed stays on hold
The 10-year Treasury yield reached 4.69% in Monday’s auction, its highest since 2007, even as Fed-sensitive data (softer jobs, cooling inflation) ruled out a September rate increase. The driver wasn’t monetary policy but fiscal pressure: surging U.S. debt issuance is pushing long-term yields up, effectively tightening financial conditions without the Fed’s involvement.
The ripple effects are growing:
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Mortgage rates rose to 6.67%, up from 3% in 2021, cutting homebuyer purchasing power by roughly 20%.
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Existing home sales dropped 15% year-over-year in July, while new construction stalled.
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Housing weakness drags on consumer spending, as home equity makes up about 40% of household net worth.
Stocks, meanwhile, remain steady. The S&P 500 is up 4.6% in August, and the Nasdaq has gained 5.04%, led by AI-related names. But Monday’s 12.3% VIX jump to 16.01 suggests complacency is fading. Bonds are signaling caution; stocks are still chasing growth.
Oil adds another wrinkle. OPEC+’s plan to fully reverse its last voluntary cut in September, adding 188,000 barrels/day, did little to lower prices, with Brent crude holding at $90.99, up 2.34% for the week. Geopolitical risks, including Iran’s threats to Oman and Strait of Hormuz tensions, have set a price floor. While the rally benefits energy stocks (XLE +7.67% over five sessions), stubbornly high oil prices could slow the decline in core inflation, complicating the Fed’s path even if it skips a September hike.
The tension is clear:. Stocks are betting on AI’s potential, bonds reflect fiscal strain, and commodities highlight geopolitical risks. The Fed may keep rates unchanged, but the bond market is already tightening on its own.
Around the world
Geopolitical hotspots reshape global flows
Strait of Hormuz risks:. Former President Trump’s comment that he would bomb Oman if it interfered with Iran peace efforts highlighted the region’s instability. With about one-fifth of global oil transit passing through the Strait of Hormuz, disruption threats are keeping Brent crude near $90.99, despite OPEC+’s supply boost.
U.S.-China tech clash:. Washington made a 12.5% tariff on Chinese goods permanent, replacing a temporary 10% rate, citing forced labor concerns. The move also tightened export controls on advanced semiconductors. While the immediate effect limits China’s access to high-end chips, the longer-term risk is that China accelerates self-sufficiency, potentially building a rival supply chain by the 2030s.
Europe’s energy bet:. The EU extended sanctions on Russia through July 2027 and is preparing its toughest restrictions yet this fall. But Ukrainian drone strikes have already cut Russian oil production by 300,000 to 400,000 barrels/day, tightening global supply as Europe tries to break its energy dependence. The strategy risks higher prices and renewed inflationary pressure.
Middle East supply chains under strain:. Ukrainian drone attacks have pushed Russian refinery runs to 20-year lows, while Iran’s strikes near the Bab al-Mandeb Strait force costly shipping detours. The disruptions act like a hidden tax on global trade, raising freight costs and delaying deliveries.
Companies making news
Copper shortages test AI’s momentum
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AMD +6.5%: Shares rose to $514.39 as AI chip demand stayed strong, though copper shortages could slow data center growth.
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Broadcom -5.9%: Fell to $392.99 after reports that its $370 billion AI financing platform faced delays due to copper supply issues and rising construction costs.
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Schlumberger +3.3%: Energy service stocks advanced with oil at $90.99, extending a 15.91% monthly gain.
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Software pullback: AI skepticism weighed on high-growth names, with Salesforce (CRM) -2.6%, ServiceNow (NOW) -2.5%, and Adobe (ADBE) -2.4%.
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Coinbase -3.5%: Dropped to $148.47 amid regulatory uncertainty as the SEC finalizes new crypto trading rules.
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GE Vernova +2.1%: Gained on nuclear energy and grid modernization contracts, benefiting from the shift to baseload power.
From Washington
Fed on pause as bonds lead the tightening
Goldman Sachs Chief Economist Jan Hatzius called a September rate hike “very unlikely,” pointing to soft jobs data, a 0.6% drop in July retail sales, and core PCE inflation at 2.4%, just above the Fed’s target. The assessment contrasts with market expectations, which had priced in about a 30% chance of a hike, and triggered volatility: 10-year Treasury yields stayed at 4.69%, while 30-year yields reached 5.25%.
The split shows a key shift: Bonds are reacting to fiscal policy, not the Fed. Record U.S. debt issuance, expected to exceed $1.6 trillion this year, is driving yields up, tightening financial conditions even as rate hike expectations fade. The effects are already visible:
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Mortgage rates at 6.67% have cut homebuyer purchasing power by about 20% since 2021.
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Existing home sales fell 15% year-over-year in July.
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Consumer spending faces headwinds as housing wealth, the largest part of household net worth, stagnates.
The Fed may stay on hold, but the bond market is tightening for it. That dynamic, not September’s rate decision, will shape the economic outlook.
Under the hood
Copper: The weak link in the AI chain
The often-overlooked connection between AI’s potential and its execution: Frontier compute → copper supply → data center costs → AI earnings → valuations → Fed policy.
Advanced AI models require far more computing power, needing about 250 tons of copper per 100 MW data center just for electrical wiring. Yet LME copper stockpiles have dropped to roughly 200,000 tons, a 15-year low, with spot prices at a $478/ton premium to futures. This isn’t a short-term squeeze; it’s a structural mismatch between AI’s growth pace and copper’s supply limits.
The cascading effects:
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Higher construction costs: Copper now adds 2 to 3% to data center budgets, up from about 1% in 2023. For a $500 billion AI infrastructure buildout, that’s an unplanned $10 to $15 billion expense.
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Project delays: Hyperscalers may lease off-balance-sheet capacity, but copper shortages still slow expansion. A 100 MW facility facing a six-month copper delay loses about $50 million in deferred revenue.
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Earnings risk: Nvidia (45x earnings) and AMD (30x) assume 30 to 40% annual revenue growth. Copper constraints threaten that outlook, yet valuations ignore execution risks.
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Productivity lag: The Fed’s expected AI-driven productivity boost gets delayed, extending the inflation-stagnation tradeoff.
Rising AI infrastructure bond yields (investors demand higher risk premiums).
Signs of relief:
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Stockpiles above 250,000 tons (supply recovery).
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Copper shifting to contango (spot discounts futures, signaling surplus).
Copper isn’t just another commodity. It’s the rate-limiting factor on AI’s economic impact, and markets haven’t priced that in yet.
Worth learning today: The long-term debt cycle
Yesterday’s question, whether Canada’s July CPI would meet the Bank of Canada’s 2.0% target or come in higher, remains open. We’ll circle back when the data arrives.
The debt supercycle: Why this time isn’t different
The "debt cycle" isn’t a single loop, it’s a layered system of short-term (5-8 year) business cycles and long-term (50-75 year) debt supercycles that reshape economies. The U.S. is deep in the latter’s final stage.
The five phases:
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Buildup (20-30 years): Debt grows faster than income, fueling spending and asset prices. U.S. debt-to-GDP rose from around 150% in the 1980s to about 350% by 2008.
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Bubble (5-10 years): Debt becomes unsustainable. The 2006-2007 housing bubble was a classic example, with mortgage debt hitting $10.5 trillion (98% of GDP).
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Crash (1-3 years): The bubble bursts. Defaults surge, asset prices collapse. Lehman Brothers’ 2008 failure marked the peak.
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Deleveraging (7-10 years): Households, banks, and governments cut debt. Spending drops, growth stalls. The 2010s U.S. recovery and Japan’s "Lost Decade" fit this pattern.
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Reset: Debt levels fall relative to income, and the cycle restarts.
Where we are now:
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U.S. debt-to-GDP exceeds 120% (up from about 60% in the 1990s).
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The Fed’s balance sheet has grown to $7 trillion, more than double its pre-2008 size.
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Monday’s 10-year Treasury auction at 4.69% shows bond markets pricing in late-cycle fiscal strain.
The 2008 lesson:. That crisis saw the short-term housing cycle collapse into the long-term debt cycle’s peak, creating a "perfect storm" of deleveraging. The result? A deeper crash and a slower recovery.
For context:. Late-stage supercycles often bring:
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Lower trend growth (as debt weighs on productivity).
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Higher volatility (as asset prices swing with leverage).
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Policy constraints (as high debt limits fiscal and monetary flexibility).
If this cycle is peaking, the 2020s may look more like the 2010s, sluggish growth, higher taxes, and recurring market turbulence, than the 1990s boom.
Concept 36 of 83 in the Fair Value course.
What to watch this week
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GBP Claimant Count Change (Aug 18): — Expected 16.5K vs. prior 6.7K. A higher number could signal labor market weakness, potentially weighing on the pound.
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GBP CPI y/y (Aug 19): — Forecast 2.9% vs. prior 2.6%. A hotter reading could delay Bank of England rate cuts and support sterling.
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USD FOMC Minutes (Aug 19): — July meeting notes may offer September policy hints. Any hawkish tone could push Treasury yields higher.
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AUD Employment Change (Aug 19): — Expected 11.7K vs. prior 76.3K. Weak data may pressure the Australian dollar.
Not financial advice.This brief is for informational and educational purposes only and does not constitute investment advice or a recommendation to buy, sell, or hold any security.
Data sources: - Macro indicators: FRED® (Federal Reserve Bank of St. Louis); not endorsed or certified by FRB St. Louis. - Energy: U.S. Energy Information Administration (EIA). - Auctions: U.S. Treasury Fiscal Data. - Filings: SEC EDGAR. - Market prices: Yahoo Finance. - Earnings: Financial Modeling Prep. ```
