NextFin News - For the first time this century outside the pandemic and the immediate aftermath of the global financial crisis, foreign investors are pouring more money into US stocks than into US government debt. International flows into American equities reached 2.8% of US GDP over the year through June, overtaking the 2% of GDP flowing into Treasuries, according to analysis of US Treasury data by Deutsche Bank. The shift marks a rare inversion in how the world finances America: the planet's savings are chasing Wall Street's earnings rather than Washington's IOUs.
The reversal arrives as the 10-year Treasury yield climbs toward 5.2%, the Congressional Budget Office projects a $1.9 trillion deficit for fiscal 2026, and the S&P 500 heads for a fourth straight year of double-digit gains. It is the clearest signal yet that the post-crisis compact — foreign official institutions recycling trade surpluses into safe US bonds — is giving way to something more return-hungry, and more fickle.
The Great Rebalancing: Equities Overtake Bonds
The headline number is deceptively simple. Foreign inflows into US equities averaged 2.8% of GDP in the year to June, against 2% for Treasuries. Outside two brief episodes — the pandemic scramble of 2020-21 and the global financial crisis hangover of 2009-10 — nothing like it has happened since 2000. For most of the intervening two decades, the default setting of the global financial system was the opposite: export-led economies accumulated dollars and parked them in US government bonds, keeping the Treasury curve artificially cheap while American equities competed for whatever capital was left over. That order has now flipped.
The driver is not hard to identify. AI-driven profit expansion has pushed S&P 500 net margins to the highest levels since data began in 2009. The blended net profit margin for the second quarter of 2026 reached 16.9%, and even excluding two outsized contributors it would have stood at 15.0% — still a record for the series. Analysts are modeling calendar-year earnings growth of roughly 21% for 2026, and the index's forward price-to-earnings ratio of about 20.9 sits above both its five-year average of 19.9 and its ten-year average of 18.9. When equities compound at that pace while bonds carry duration risk against an expanding deficit, the allocation decision writes itself. Foreign capital is not fleeing the dollar; it is simply refusing to accept the coupon that the dollar now offers.
But the monthly Treasury International Capital data tell a more granular, and more worrying, story on the debt side. In July, foreign residents made net purchases of $40.6 billion in long-term US securities — yet that aggregate masks a split that should concern any official planning the next Treasury auction. Private foreign investors were net sellers of long-term securities to the tune of $3.7 billion, while foreign official institutions — central banks and sovereign funds — bought $44.4 billion. Strip out the stock-swap adjustments that the Treasury applies and overall net foreign sales of long-term securities were an estimated $27.9 billion for the month.
Look across the twelve months through July and the pattern hardens. Private foreign investors accumulated $802.3 billion of US equities versus just $263.4 billion of Treasury notes and bonds. Official institutions, historically the steady hand in the Treasury market, were net sellers of Treasury notes and bonds over the same stretch, to the tune of $16.8 billion, even as they added $139.6 billion of equities. The world is still funding America. It is just demanding equity risk premia instead of coupon payments.
The scale of the equity leg is hard to overstate. Foreign investors bought a net $720 billion of US equities in 2025 alone, according to Treasury data — the bulk of a $1.55 trillion net purchase of long-term US financial assets that year, up from $1.18 trillion in 2024. China, by contrast, was a net seller of $208.6 billion of US assets over the period, its Treasury holdings falling to $683.5 billion. Japan trimmed its holdings from a peak above $1.2 trillion earlier in the year to roughly $1.1 trillion by mid-2026, partly to raise dollars for currency intervention. The rotation is broad, but it is not universal: some of the largest official holders are trimming, not adding.
Why the Bond Market Is Asking for More
The debt side of the rotation has a name: fiscal arithmetic. The Congressional Budget Office's February 2026 outlook put the fiscal 2026 deficit at $1.9 trillion, or 5.8% of GDP, with deficits totaling $24.4 trillion over the following decade and debt held by the public on a path to a peacetime record of 120% of GDP by 2036. Total gross federal debt has already climbed toward $39 trillion. A borrower at that scale cannot afford for its marginal buyer to become price-sensitive, because every extra basis point of yield is levied on a stock of debt that refinances continuously.
That sensitivity is showing up in the yield curve. The 10-year Treasury yield sat around 5.17% in late September, nearly a full percentage point higher than a year earlier, while the 30-year bond hovered near 5.5%. Those are not panic levels — auctions are still clearing — but they are the market's answer to a simple question: how much extra yield do you need to hold duration risk when the supply is endless and the borrower's balance sheet is deteriorating?
"While conducting buybacks at the long end of the yield curve may technically decrease yields, higher structural US budget deficits, which require a significant supply of Treasuries to finance the US debt, are not changing anytime soon," said Libby Cantrill, head of public policy at Pimco.
The Treasury's own response — larger buybacks of long-dated bonds — has bought time, not confidence. The 30-year swap spread has compressed, and buybacks have mechanically reduced duration supply, yet the 30-year yield keeps grinding toward levels last seen a quarter-century ago. Buybacks can change the maturity mix of what is outstanding. They cannot change the present value of what must be paid. And the transmission runs straight through to the real economy: the 10-year yield is the reference rate for roughly $13 trillion of mortgages and the benchmark for corporate investment-grade issuance. A funding market that demands more does not punish only the Treasury; it prices every leveraged asset in the country.
The Second-Order Read: America Is Still Being Funded — Just Differently
Here is the implication most commentary misses. A foreign investor buying a Treasury bond creates a fixed, senior claim on future US tax receipts: coupon and principal, in dollars, on schedule, regardless of whether the US economy grows. A foreign investor buying an S&P 500 index fund creates no such obligation. There is no coupon to service, no maturity wall to refinance, no default event to trigger. The risk is borne by the investor, not the issuer.
That distinction reframes the entire "who will fund America's deficit" debate. If the world's savings keep flowing into US assets at 2.8% of GDP but the instrument shifts from debt to equity, the United States avoids a funding crisis even as its debt stock swells. The cost of capital migrates from the Treasury curve — where it sets the price of every mortgage, corporate bond, and municipal issue — into the equity risk premium, where it is absorbed by diversified global portfolios. In that world, the 10-year yield can rise without triggering a fiscal spiral, because the marginal dollar of foreign savings is no longer sitting in the bond market demanding a term premium.
There is, however, a catch. Equity flows are fair-weather friends. Bonds are contractual; stocks are optional. The $720 billion of net foreign equity purchases in 2025 arrived alongside an AI-driven melt-up and a dollar that spent much of 2026 firm. If the S&P 500 posts its first down year since 2022, or if the dollar turns, those flows can reverse faster than any bond redemption schedule. A foreign central bank can hold a Treasury to maturity and ignore the mark-to-market. A foreign pension fund cannot ignore a 20% drawdown in its US equity sleeve without answering to its own beneficiaries.
The currency channel sharpens the point. A large share of foreign buying of US equities is unhedged — the investor is long US stocks and long the dollar by default. That worked beautifully while the dollar strengthened: currency gains stacked on top of equity gains. But it also means the flows are doubly exposed. If the Federal Reserve cuts rates while other central banks hold steady, the dollar can weaken, and unhedged foreign investors see their local-currency returns erode even if the S&P 500 is flat. Pension funds in Canada, Denmark, Australia, Taiwan, Japan and Finland hedged just 41% of their foreign-currency exposure as of mid-2026, the lowest share since at least 2015 — a positioning choice that amplifies both the inflow and the eventual outflow.
So the rotation solves the funding problem only as long as the growth story holds. It converts a solvency risk into a confidence risk. That is an upgrade — but it is not a free lunch.
Counter-Thesis: Demand Has Not Vanished, It Has a Price
The strongest case against reading this as a debt strike is that Treasuries are not being shunned — they are being repriced, and they are still selling. Recent long-end auctions have drawn bid-to-cover ratios above their six-auction averages, with some 30-year sales pricing at a stop-through, meaning investors bid the yield below where the bonds traded before the auction. Foreign holdings of Treasury bills rose $38.8 billion in July alone, and holdings of all dollar-denominated short-term securities and custody liabilities jumped $65.0 billion. Short duration is in demand. Long duration is on strike.
Nor are official flows dead. Foreign official institutions bought $44.4 billion of long-term US securities in July, and net official TIC inflows were $10.2 billion for the month. The private sector is the one rotating out of bonds and into stocks — and private capital has always been return-sensitive rather than reserve-hungry. In four of the first five months of 2026, private overseas investors were still net buyers of Treasuries. This is not a boycott. It is a barbell: cash and bills for safety, equities for return, and the long bond left in the middle.
There is also a measurement caveat worth holding. The headline narrative of official selling is partly a custody artifact. Central banks' reported Treasury holdings move with prices and exchange rates as well as with actual trades, and some of the apparent reduction reflects holdings being shifted into non-US custodial jurisdictions or into state-owned banks rather than outright sales. One analysis of official TIC data found that foreign central banks' net sales of Treasury bonds and notes last year totaled only about $34 billion — barely 1% of their roughly $3.5 trillion stash. Read that way, the "strike" looks less like a walkout and more like a slowdown in new buying.
That counter-thesis is powerful — and it is also the reason the structural verdict is premature. If higher yields keep attracting enough foreign capital to fund the deficit without a disorderly move in the dollar, then the market has not structurally abandoned Treasuries; it has simply moved the clearing price. The rotation into equities may be the durable leg. The flight from bonds may just be the market doing its job.
What to Watch: The Signal That Would Break This View
The base case is a hybrid: a structural, AI-and-margins-driven preference for US equities layered on top of a cyclical, price-sensitive repricing of long-duration debt. In that world, the 10-year yield settles in the high-4s to low-5s, equity inflows stay positive but volatile, and the Treasury funds itself at a higher-but-manageable cost. The equity leg is the structural one because it rests on a durable margin expansion and a technology investment cycle; the debt leg is cyclical because it responds mechanically to yield levels.
Two scenarios sit on either side. In the upside case for risk assets, S&P 500 earnings growth stays above 20%, margins hold near record levels, and foreign equity inflows remain above 2% of GDP. The deficit is crowded out of the conversation by earnings momentum, and the dollar stays firm enough that unhedged foreign buyers keep coming. In that world, the bond market's grumbling is background noise.
In the downside case, the rotation proves cyclical after all. If the S&P 500 falls 15% or more from recent highs and foreign equity flows flip negative for two consecutive quarters, the "structural shift" narrative collapses back into a momentum trade. Simultaneously, if the 10-year yield pushes above 5.5% and long-end auctions begin to tail consistently — the issued yield exceeding when-issued trading by more than a couple of basis points across multiple sales — then the debt aversion graduates from price-sensitive to structural, and the funding question returns with force.
The single falsifying signal for the hybrid view is this: sustained foreign official net sales of Treasury notes and bonds — not custody-adjusted holdings, but actual transaction flows — combined with failed or badly tailed long-end auctions while the 10-year yield sits above 5.5%. Official sellers can walk away from any price. If they do, the market's current confidence is a mirage.
For now, the world is not selling America. It is renegotiating the terms — accepting ownership of its growth while charging more for its debt. The investors winning that negotiation are the ones who remember that every equity inflow is a vote of confidence that can be withdrawn, while every bond coupon is a promise that must be kept. The United States is discovering that promises are becoming the more expensive instrument.
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