BofA flags summer risks for French OATs and favors long 10-year EU bonds versus France

Overview

This BofA European Rates Watch focuses on the supply, positioning, and flows of European government bonds. The report discusses EGB supply over the next two weeks, potential syndicated issuance, investor flows into German government securities, duration sentiment among European fund managers, and the supply as well as political-fiscal pressures that French OATs may face over the summer. The overall conclusion is not broadly bearish on European rates assets, but rather emphasizes structural divergence: sentiment toward core European duration is improving, while the relative risks of French OATs are underestimated by the market.

Core views

The core views are: first, EGB net supply over the next two weeks will be negative due to high coupons and redemptions, so near-term technicals are not entirely unfavorable; second, Portugal, Spain, and Greece may supplement issuance through syndications, meaning the supply pace still needs to be monitored; third, French OATs face risks from concentrated net supply between June and August, budget season, political events, and the duration of Moody's negative outlook approaching a common rating-action window; fourth, actual fund flows in German government bonds show stronger buying by central banks and banks, while leveraged investors are still net sellers; fifth, fund manager sentiment and exposure toward core European duration have turned bullish.

Analysis framework

The report uses a multi-dimensional framework including supply-redemption calculations, net futures positioning and open interest changes, investor-segment flow data, the BofA Global Investor Survey, and special versus general collateral spreads in the repo market to jointly assess EGB technicals and relative value opportunities. The authors also warn that as the futures roll period approaches, futures positioning becomes less representative of broader market positioning and sentiment.

Methodology notes

• Supply technicalsGross supply and net supply analysis

  Net supply pressure over a forward window is calculated using government bond issuance, coupons, and redemptions.

  The report offsets EGB auctions and potential syndicated issuance over the next two weeks against maturing redemptions and coupon cash flows to assess the scale of net supply the market needs to absorb in the short term.

• Positioning indicatorsNet futures positioning and open interest

  Contracts such as DU, OE, RX, UB, Italian futures, and French futures are used to observe investors' long-short direction.

  The report compares net long-short positions and weekly changes in German, Italian, and French futures, but explicitly notes that as the roll period approaches, the reliability of futures positioning as a proxy for overall market sentiment declines.

• Survey indicatorsBofA Global Investor Survey Bull-Bear Index

  The Bull-Bear Index weights survey responses such as overweight, underweight, bullish, and bearish, with a range from -100 to 100 and 0 representing neutral.

  The survey is used to gauge fund managers' relative benchmark positioning in currency and duration exposure, as well as their subjective views on the bond market.

• Repo marketspecial versus general collateral repo spread

  The special versus general collateral repo spread is used to observe bond scarcity and short-position pressure.

  The report uses SC-GC measures and two-year z-scores across markets such as GER, FRA, ITA, and SPA; more negative values generally indicate larger short positioning.

• Flow analysisNet buying by investor type

  Net purchases of government bonds are tracked by categories such as leveraged investors, banks, central banks, fund managers, pensions, and insurers.

  The report breaks down March net purchases of German government securities by investor group and maturity to identify the true sources of demand and maturity preferences.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• EGB

  Core asset under study

  Strengths

  High coupon and redemption flows over the next two weeks make short-term net supply negative, offering some technical support.

  Weaknesses

  Potential syndicated issuance could lift gross supply, and supply timing differs significantly across countries.

  Comparison

  The report compares EGB supply with UK and US government bond supply and redemptions over the same window.

  Risks

  If issuance sizes exceed expectations or reinvestment demand is weaker than expected, the support from negative net supply may diminish.

• 法国OAT

  Relatively cautious target

  Strengths

  If French growth or fiscal performance surprises to the upside, OATs could find support.

  Weaknesses

  Net supply is concentrated from June to August, while budget season and political events are approaching, and Moody's negative outlook could also become a risk point around October.

  Comparison

  The report favors going long 10-year EU bonds versus France, arguing that current valuations do not fully reflect French risks.

  Risks

  Better-than-expected improvement in French fiscal conditions or growth, as well as market repricing of higher EU supply, would be unfavorable for this relative value trade.

• 10-year EU bonds

  Relative long expression

  Strengths

  Versus France, EU bonds are used to express the view that the French risk premium will widen.

  Weaknesses

  If EU bond supply is larger than currently communicated, the trade thesis would be impaired.

  Comparison

  The trade is expressed as Dec-35 vs FRTF 3.5% Nov-35, with 30bp entry, 40bp target, and 25bp stop loss.

  Risks

  An upward revision in EU supply or improving French fundamentals could cause spreads to tighten.

• German government securities

  Core focus for flow observation

  Strengths

  In March, banks were net buyers of more than €13bn and central banks were net buyers of about €32bn, showing stronger official and banking-sector demand.

  Weaknesses

  Leveraged investors were net sellers of about €3bn in March, with the largest outflows in the 30-year sector.

  Comparison

  The 2-10 year sector saw stronger central bank inflows, while Bubills and the 10-year sector were where bank buying was more concentrated.

  Risks

  If leveraged investors continue to reduce positions or long-end demand remains insufficient, the long end of the German curve could come under pressure.

• German futures DU/OE/RX/UB

  Proxy for positioning and sentiment

  Strengths

  DU remains the most net-long contract on the German curve, and on a weekly basis all German contracts saw open interest increase, with net positioning turning more bullish or less bearish.

  Weaknesses

  OE and RX remain net short, while UB is close to neutral.

  Comparison

  German futures positioning is more biased toward long core duration than Italian and French positioning.

  Risks

  As the futures roll period approaches, futures positioning becomes less representative of overall market positioning.

• Italian and French futures

  Peripheral and French positioning indicators

  Strengths

  In outstanding positions, investors remain net long Italian futures, while French futures are close to neutral.

  Weaknesses

  In weekly changes, positioning in Italian and French futures was driven by new short additions.

  Comparison

  Unlike German futures, which turned more bullish on a weekly basis, short-term positioning changes in Italy and France are more cautious.

  Risks

  If new short positions continue to build, they could amplify spread moves and volatility.

Key data

• Net supply over the next two weeks-€33.55bnHigh coupon and redemption flows combined with relatively low gross supply produce negative net supply.
• Expected total EGB auction supply next week€15-18bnThe report expects issuance of this size via auctions next week, with potential syndications from multiple countries in addition.
• Concentration of France's 2026 net supply45%About 45% of expected French government bond net supply is scheduled for June to August, creating summer technical pressure for OATs.
• Relative value trade idea30bp entry / 40bp target / 25bp stop lossLong 10-year EU bonds versus France, expressed as Dec-35 vs FRTF 3.5% Nov-35.
• Potential syndicated issuancePortugal €3bn; Spain €10-15bn; Greece €2-3bnPortugal canceled next week's auction and may switch to a 15-30 year syndication; Spain may issue a 10-year bond; Greece may issue 5-year, 15-year, 30-year, or dual-tranche bonds.
• March net selling by leveraged investors in German government securities€3bnThe largest outflows were concentrated in the 30-year sector.
• March net buying by banks in German government securities>€13bnThe largest purchases were concentrated in Bubills and the 10-year sector.
• March net buying by central banks in German government securities€32bnThe 2-10 year sector saw the largest inflows.
• Core European duration sentimentBoth sentiment and exposure turned bullishBofA survey data show that as of May-26, fund manager sentiment and exposure toward core European duration had turned positive.

Impact & implications

For investors, the implication of the report is that European rates assets need to be assessed by country and maturity. Near-term negative net supply and improving core duration sentiment support demand for some EGBs, but the concentration of supply, political-fiscal events, and rating risks facing French OATs may create relative performance pressure. In trading terms, the report emphasizes spread-widening opportunities for EU bonds versus France rather than a simple directional bet on overall European rates.

Risks

• Larger EU bond supply could weaken the long EU versus France trade.
• Better-than-expected growth or fiscal performance in France could ease the relative pressure on OATs.
• Moody's negative outlook, France's budget season, and political events could trigger a repricing of OAT risk premium.
• As the futures roll period approaches, the reliability of futures positioning as a proxy for overall market sentiment declines.
• If the size, maturity, and timing of syndicated issuance deviate from expectations, short-term EGB supply-demand balances could change.
• Fixed income and relative value trades may involve significant market, liquidity, short-selling, and leverage risks and are not suitable for all investors.

What to watch

• The execution pace of French government bond net supply from June to August.
• France's budget season, rulings related to Le Pen's candidacy eligibility, and progress in the presidential campaign.
• Moody's outlook or rating actions on France around October.
• The size, maturity, and investor demand of potential syndicated issuance from Portugal, Spain, and Greece.
• Subsequent changes in net buying by banks, central banks, and leveraged investors in German government securities.
• Whether survey indices for core European duration among fund managers continue to improve.
• Whether special versus general collateral spreads in the repo market indicate stronger bond scarcity or short pressure.