Pensions Owned the Bond Market. Now Hedge Funds Own a Record Share of It.

Hedge funds hold about $2 trillion of Treasurys — double five years ago, and a record 7% of the market — while pension funds have cut fixed income from 40% of assets to as little as 10%. The New York Fed has started asking questions.

By Sean Anees Saifi · Capital Wealth · Published Wednesday, September 16, 2026 · Source: The Wall Street Journal, September 16, 2026 edition, plus Tuesday’s market close as the paper printed it

Key Points

Hedge funds held about $2 trillion of Treasurys at the start of this year — more than double five years earlier, and a record 7% of the market.
U.S. pension funds once held close to 40% of assets in fixed income. That share has fallen to 10–15%.
Three decades ago a pension could make 7.5% with a portfolio more than 80% in U.S. bonds. To hit the same return now it must accept more than twice as much risk.
The New York Fed has been asking traders about “relative value” strategies; foreign central banks and the IMF are researching the same shift.
$1.2 trillion of Treasury securities change hands every day. The U.S. deficit is projected at 6% of GDP this fiscal year.

$2T

hedge-fund Treasury holdings, a record 7% of the market

40% → 10-15%

pension funds’ fixed-income allocation

2×

the extra risk a pension now needs for the same 7.5%

projected U.S. deficit as a share of GDP this year

An empty open-plan office at dusk, chairs pushed in, with a single desk lamp still lit at the far end.

Patient buy-and-hold owners are being replaced by leveraged, faster-twitch ones in a market where $1.2 trillion changes hands every day.

In one line: The buyers who used to absorb government debt without flinching have left, and the ones who replaced them use leverage and can change their minds in an afternoon. That is a volatility story, not a solvency one.

Something quietly structural has happened underneath this week’s bond selloff, and it will outlast the headlines about the Iran war and the deficit.

For decades governments could rely on predictable buy-and-hold investors to absorb their debt. Pension funds bought bonds because bonds matched their obligations, and they held them. Now those investors are pulling back in search of returns elsewhere — and the void has been filled by hedge funds and other faster-twitch traders.

The numbers

Hedge funds held about $2 trillion of Treasurys at the start of this year, more than double their holdings five years earlier, according to the Treasury Department’s Office of Financial Research, which said they controlled a record 7% of the market. Data released by the Federal Reserve suggests those holdings remain elevated, says Molly Brooks, a research strategist at TD Securities.

At least some of it is the basis trade — capitalising on small price gaps between Treasury bonds and futures, borrowing money to amplify the gains. That trade has plateaued in size over the past couple of quarters but remains sizable.

On the other side of the ledger: U.S. pension funds once held close to 40% of their assets in fixed income. More recently that share has fallen to 10% to 15%, according to the Centre for Economic Policy Research. Pensions in advanced European economies have seen their bond mix fall to about 20% from about 35% at the start of the century.

Why the patient money left

Not ideology — arithmetic. Bonds stopped being able to cover the obligations, pushing pensions into private debt, real estate and infrastructure. The era of low rates last decade did the damage.

The clearest illustration comes from Callan, which advises retirement systems: three decades ago a pension fund could generate 7.5% returns with a portfolio consisting of more than 80% U.S. fixed income. To hit the same return now, it must accept more than twice as much risk.

David Zee, a fixed-income specialist there: “The landscape has changed. That marginal dollar that would’ve gone to government debt may now be looking for other opportunities.” His pension clients are making one-tenth as many requests for active bond managers as they did two years ago. Jack Delany at Keyridge Asset Management puts it shorter: “Bonds are no longer enough.”

Large pension funds in Denmark, the Netherlands and Australia have cut Treasury holdings over the past year. Norway’s more than $2 trillion sovereign-wealth fund — the world’s largest — proposed cutting its allocation to government bonds in favour of mortgage-backed securities and other riskier debt.

Why regulators are asking

The Federal Reserve Bank of New York has been asking investors and traders about the growing role of hedge funds in the government-bond market, with a particular interest in “relative value” strategies — simultaneous bets on some government debt paired with shorts on other. Representatives of foreign central banks and the International Monetary Fund are doing their own research. One area of interest: the multimanager firms that hire teams of traders and use leverage to amplify these bets.

There is a genuine defence. Hedge funds add liquidity, making it easier to buy and sell. And as investors point out, if governments are worried about bond markets, they might show more restraint in issuing debt — the U.S. federal deficit is projected to reach 6% of gross domestic product this fiscal year. Ranjiv Mann of Allianz Global Investors: “The big question for markets is the fiscal stance — it’s too loose.”

What it means for someone who just owns a bond fund

Mostly this: expect the ride to be bumpier than the credit quality suggests.

A Treasury is still a Treasury. What has changed is who is standing on the other side of the trade on a bad afternoon, and how much borrowed money is behind them. Leveraged holders sell when they are forced to, not when they want to, which makes moves faster and sharper in both directions.

That is an argument for owning duration you can hold through a bad week rather than duration you intend to trade — and for treating the price swings in a long bond fund as a feature of the new ownership structure rather than as news about whether the government will pay you back.

What It Means For Your Portfolio

Watch — same credit, faster hands

A Treasury is still a Treasury. What changed is who holds it on a bad afternoon and how much of it was bought with borrowed money.

General planning principles, not advice for anyone in particular. The practical read is about volatility, not default risk: leveraged holders sell when they must rather than when they choose, which makes the path noisier without changing the destination. Someone holding a long bond fund should expect sharper moves than the credit quality alone would imply.

The pension half of this story is the more useful one for households, because it is the same problem in miniature. When safe assets stopped covering the liability, institutions with far more resources than any family responded by taking more risk to hit an unchanged target. That is worth remembering before anyone reaches for yield to close a gap in their own plan — the institutions that did it first needed twice the risk for the same number.