-- Market rally fades, but senior bank debt stays positive

-- Spanish bank recapitalization good news for bank investors

-- Covered, senior bonds to benefit, subordinated debt at risk given Irish precedent

By Serena Ruffoni

Investors in bank debt took heart Monday from the euro area's pledge to provide 100 billion euro ($125 billion) for shoring up Spain's sickly banks, with both Spanish and Italian bank bonds enjoying a rally.

Cash spreads tightened 10 to 15 basis points even after interest subsided, getting a region-wide boost from well-bid French and German banks.

"All Spanish bank debt is benefiting from the additional capital buffer," said Societe Generale bank analyst Jean-Luc Lepreux. "Investors get more comfort in the capacity of Spanish banks to absorb losses from the real estate sector."

ING credit strategists said the capital injection, to be channelled through Spain's bank restructuring fund FROB, is a clear positive and would benefit secure, collateralized debt like covered bonds, which have a claim on bank assets, often real estate loans.

"The funds made available for recapitalization will hopefully result in the necessary write-downs and market-conform revaluation of Spanish property loans," wrote Maureen Schuller at ING. She said it would increase the quality of Spanish collateral, in turn helping covered bonds.

Senior debt also rallied on the news, as it stands to gain from the additional loss cushion potentially available.

On the other end of the spectrum, the fate of subordinated Spanish bondholders remains uncertain, if Ireland serves as any guide.

That country's bailout prompted debt exchanges for the four main Irish lenders--Anglo Irish Bank, Allied Irish Bank, Bank of Ireland and Irish Life and Permanent--leading to deep losses for subordinated bondholders.

RBS strategists Alberto Gallo and Phoenix Kalen say the seven largest Spanish banks have nearly EUR59 billion of subordinated bonds. Most of that debt lies with the two largest institutions, BBVA and Santander, and they don't need FROB funds. But smaller banks have these bonds too, including EUR7.5 billion for Bankia and Banco Financiero Y De Ahorros.

There is a risk that subordinated bondholders may have to take a loss. "We think investors should be underweight sub bank bonds as long as banks lack capital," the RBS strategists said.

Still, subordinated bank debt rallied Monday, in tandem with the more secure senior and covered debt. "Potentially, subordinated holders could lose out," said Lepreux at Societe Generale. "But in the meantime, the FROB injection puts an additional layer between them and the losses."

Write to Serena Ruffoni at serena.ruffoni@dowjones.com

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