~100 London Hedge Fund Traders Fired as French OAT Carry Trade Implodes

The leveraged sovereign bond carry trade that minted seven-figure paydays for three years just handed out pink slips instead.

Key takeaways

• Nearly 100 London-based European rates portfolio managers and traders have been fired from multi-strategy hedge funds this month after a leveraged French government bond carry trade collapsed, per eFinancialCareers reporting by Sarah Butcher.
• The OAT-Bund 10-year spread is nearing 160bps, its widest since the 2011-12 eurozone debt crisis, after France's fiscal watchdog triggered a bond selloff on October 1; French 10-year yields have risen roughly 150bps since the Hormuz crisis began, per Allianz Research.
• Many of the fired traders had already blown up on the same positions in March during the Iran war unwind, seven months apart, the same book got carried out twice.

Nearly 100 London-based European rates portfolio managers and traders have been fired or removed from multi-strategy hedge funds this month, according to eFinancialCareers reporting by Sarah Butcher, as a leveraged French government bond carry trade collapsed under the weight of widening spreads and forced deleveraging. The count climbed from roughly 75 a few weeks ago to close to 100 as of this week.

The OAT-Bund 10-year spread stood at 157.5bps as of October 21, per ideal-investisseur.fr tracking data sourced from Banque de France and Deutsche Bundesbank, its widest since the 2011-12 eurozone debt crisis. French 10-year yields have risen approximately 150bps since the Hormuz crisis began, and market depth in OATs is more than 50% below normal, per Allianz Research's October 9 report.

The Trade That Blew Up

The mechanics were simple. Funds bought French government bonds, financed them in the repo market using those same OATs as collateral, and pocketed the spread between the bond yield and the repo cost. Lever it up enough times and a few basis points of carry becomes a career. A wider version, the OAT asset-swap, harvested the spread between French yields and interest-rate swaps.

Funds including Taula Capital and Balyasny Asset Management had built those asset-swap positions, per Bloomberg's October 2 reporting by Georgia Hall and Alice Atkins. The trade worked until October 1, when France's fiscal watchdog criticized the government's budget as overly optimistic. The selloff was immediate, and every crowded position hit the exit at once.

RBC BlueBay's Kaspar Hense described the result to Bloomberg: "Most typical hedge-fund strategies are in risk reduction mode. There have also been stop-loss levels triggered, partly on the steepener trades and now on long France trades."

A senior trader at a liquidity provider gave eFinancialCareers the unvarnished version: "Everyone has blown up... they are all out."

A bank trader watching from the sidelines was blunter: "These people weren't even real portfolio managers. They were just using EGBs as a carry asset. Buying bonds, sitting on the carry and getting a percentage cut. You had a lot of PMs who were long France and long Italy, but with inflation coming in and rates high, it wasn't going to last."

Same Book, Same Exit, Seven Months Apart

The most damning detail in the eFinancialCareers piece: many of the PMs fired this month had already blown up in March on the same positions. That first unwind was triggered by the Iran war and the Hormuz shock, which rattled European rates books across multi-strategy funds. Seven months later, the same structure blew up again.

One PM offered the only honest post-mortem: "Every bubble has its moment."

This is not a freak accident. France is running fiscal deficits above 5% of GDP, per European Commission forecasts. Allianz Research confirmed OAT market depth is more than 50% below normal.

The sovereign debt spiral that European policymakers declared resolved in 2012 was not resolved. It was papered over with suppressed rates and a generation of carry trades built on top of sovereign bonds treated as pristine collateral. Rates are no longer suppressed.

The OAT-Bund spread hit 154bps, the widest since 2011, in the days after October 1. As of October 21 it stood at 157.5bps, its widest since the 2011-12 eurozone debt crisis. The ECB's sovereign doom loop, where sovereign weakness feeds bank weakness feeds more sovereign weakness, is active. Market participants are already flagging Italian BTPs as the next pressure point.

What the Collateral Failure Actually Means

OATs were not just bond positions in these books. They were the collateral underpinning the repo financing that made the borrowing possible. When the collateral loses value faster than the borrowing can be unwound, the de-grossing is forced and simultaneous.

Every counterparty that thought it held safe collateral finds out otherwise at the same moment. This is the same mechanism that nearly took down European banks in 2011 and 2012.

When multi-strategy funds are forced to de-gross crowded European rates books, the risk-off impulse ripples into every other levered position globally. This is a global liquidity event dressed up as a personnel story.

The falsifiable thesis here: if the OAT-Bund spread compresses back below 100bps within 30 days without ECB intervention, and no contagion appears in Italian BTPs or European bank CDS, this episode can be filed as a positioning correction. Watch those three gauges. ECB intervention to suppress the spread is the playbook from 2012 running again, buying time rather than solving anything.

The broader argument this episode keeps making: a system that requires sovereign bonds to function as "risk-free" collateral in leveraged shadow-banking chains is structurally fragile when the sovereigns issuing those bonds cannot balance their books. The math does not care about central bank credibility statements. It cares about deficits, debt loads, and whether the repo desk on the other side of the trade is still there in the morning.

What to Watch

Three things to track in the coming weeks: the OAT-Bund spread (another leg above 160bps signals the forced selling is not done), Italian BTP-Bund spread widening (the contagion gauge), and European bank CDS (the doom loop indicator). Any ECB emergency intervention resets the clock but does not change the underlying fiscal arithmetic. The Hormuz-driven March episode and this October episode are not two isolated shocks. They are two stress tests on the same structural fragility, and the structure failed both times.

Sources

• eFinancialCareers / Finadium summary, Sarah Butcher, "London's macro hedge fund pain as up to 100 people are out"
• Bloomberg, Georgia Hall and Alice Atkins, "Hedge Funds Exiting Trades Fueled Rout in French Bonds," October 2, 2026
• Allianz Research, "Toasted, not burnt: France's bond sell-off and the road to the 2027 election," October 9, 2026