The French rout reaches the banks that hold the bonds
A sovereign-bank loop is the mechanism that turned a bond-market problem into a banking crisis in 2011, and its first stage is now visible in prices.
The Euro Stoxx banks index has fallen about 8% in two weeks, to its lowest since June, and entered a technical correction on Thursday. Société Générale, Crédit Agricole and Deutsche Bank are each more than 15% off their recent highs, and the premium France pays over Germany is the widest in more than a decade (Bloomberg).
On Monday we wrote that the French selloff had crossed a border and an asset class — into the euro and the periphery. By Thursday it had crossed into bank equity, which is the channel that matters. European banks hold their own sovereign's bonds as capital, as liquidity buffers and as collateral. When the sovereign's yields rise, those bonds are worth less, the bank's capital is thinner, and its own borrowing costs rise because the market treats the bank's credit as a function of the state's. That is the 2011 loop. The second channel is slower: Roberto Scholtes of Singular Bank told Bloomberg that yields "appear to have crossed a pain threshold", and that if rates rise as far as the curve implies, non-performing loans could rise significantly while lending slows.
Bloomberg's verdict is caution, not panic: balance sheets are stronger than in 2011, bank shares had tripled since 2022, and the sector was a crowded consensus long. All true. But the first leg of a doom loop and the unwind of a crowded trade look identical from the equity side. The thing that separates them is the sovereign spread, and whether it keeps widening once the positioning has washed out. Third-quarter results, which Bloomberg expects to reassert the sector's soundness, will also be the first set marked at these yields.