Today's Thesis
Every Major Government Just Got a Borrowing Bill It Hasn't Seen Since 2008
The interest rates that the US, UK, France, Germany, and Japan pay to borrow money — what everyone calls government bond yields — just climbed to their highest levels since the 2008 financial crisis. Two forces are hitting at the same time: the Iran war is pushing oil and gas prices higher, which reignites inflation fears, and a massive wave of AI-related borrowing is competing for the same pool of investor money that governments need to fund their own debt. Stocks fell modestly in response — the S&P 500 down 0.52%, the Dow down 0.51%, the Nasdaq down 0.32% — while gold rose on a weaker dollar and fading bets that the Fed will need to hike rates. This is not a one-day scare; it's the bill coming due for years of governments, companies, and now AI infrastructure all trying to borrow from the same well at once.
What's Actually Driving This
Global bond yields hit 2008-era highs on war-driven oil prices and AI borrowing demand, while stocks and the dollar quietly retreat
YIELD SPIKE
Government borrowing costs worldwide just reached their highest point since the 2008 crisis.
Two demands for the same pool of money are colliding: the Iran war is pushing oil and gas prices up, reigniting fears that inflation will run hotter for longer, while a separate wave of borrowing tied to AI buildout — data centers, chips, power infrastructure — is pulling on the same lenders governments rely on to fund their deficits. When too many borrowers show up to the same market at once, the price of borrowing — the yield — rises for everyone, government and company alike. That combination hasn't been this severe since the 2008 crisis reset the entire global borrowing system.
This doesn't unwind on a single headline. It eases only if oil prices actually fall back — taking the inflation fear out of the equation — or if the pace of AI-related debt issuance slows. Absent either, expect borrowing costs to stay elevated through the rest of the year.
SAFETY BID
Stocks eased and gold rose as investors quietly shifted toward safety even as long-term borrowing costs climbed.
The equity declines today were mild — under 1% across all three major indices — which suggests this is not yet panic, just repositioning. But the combination of a weaker dollar, rising gold, and fading bets on a Fed rate hike alongside rising long-term government borrowing costs is a real signal: markets are betting the Fed won't need to fight inflation with higher short-term rates, even while long-term rates rise for structural reasons tied to debt supply, not Fed policy.
Watch whether this divergence holds — Fed-controlled short-term rates easing while long-term borrowing costs keep rising. If it does, it confirms this is a supply-and-inflation story, not a central-bank-policy story, and the Fed has limited power to fix it.
The Core Dynamic
Everyone is borrowing from the same well at the same time.
Imagine a small town where the government, the biggest employer, and half the homeowners all show up at the bank for a mortgage in the same week — the bank doesn't have infinite money, so the price of borrowing goes up for all of them, not just the neediest one. That's what's happening globally: governments running large deficits, companies borrowing heavily to fund the AI buildout, and now a war-driven jump in energy prices are all pulling on the same pool of investor savings at once, and the price of that money — the interest rate — is the one thing that has to give. This version is harder to resolve than a typical energy-price scare because even if the Iran war cools tomorrow, the AI-driven borrowing wave and government deficits don't go away — only one of the three pressures would lift.
Historical Precedent
War-driven energy shocks and borrowing-supply shocks have hit bond markets before — they resolve very differently.
2022
After Russia's invasion of Ukraine sent energy prices soaring, the 10-year US Treasury yield climbed from roughly 1.5% to over 4% within a year, dragging every major asset class down with it. It only reversed once energy prices themselves rolled over in 2023 and inflation data began cooling — not when the war ended.
The market doesn't recover when the conflict ends. It recovers when oil comes down.
1994
A surge in Treasury issuance combined with Fed rate hikes blindsided bond investors who had assumed low, stable rates — yields jumped more than 2 percentage points in a year despite tame inflation, a shock so severe it bankrupted Orange County, California through losses on leveraged bond bets.
Bond markets can break long before stock markets notice, because the math of who's willing to lend, and at what price, can shift faster than the headlines do.
Directional Read
The variable to watch all week is oil, not the Fed. If the Iran conflict escalates further and oil keeps climbing, the inflation leg of this yield spike gets worse, and expensive, future-profit-dependent stocks — especially AI-linked names — face the harder valuation reset. If the conflict cools and oil retreats, the inflation piece of this story fades even though the structural AI-borrowing pressure on yields remains. Hold this: borrowing costs this high don't come down until either the war premium in oil breaks, or the pace of AI-driven debt issuance slows — whichever comes first.
Scenario A — Oil Rolls Over: Iran tensions ease and oil prices retreat meaningfully, removing the inflation fear driving the sharpest part of the yield spike and letting stocks stabilize.
Scenario B — Yields Keep Climbing: Oil keeps rising and government borrowing costs set fresh multi-year highs, forcing a harder valuation reset in AI-linked growth stocks that depend on cheap long-term financing.