by Calculated Risk on 12/03/2007 02:54:00 PM

From Bloomberg: WestLB, HSH Nordbank Bail Out $15 Billion of SIVs (hat tip Brian)

WestLB AG ... and Hamburg-based HSH Nordbank AG provided financing to more than $15 billion of troubled investment funds to prevent a fire sale of their assets.

WestLB provided a credit line for its $11 billion structured investment vehicle called Harrier Finance to repay commercial paper, the Dusseldorf-based bank said in an e-mailed statement today. HSH Nordbank said it will provide backup funding to cover all commercial paper issued by its 3.3 billion- euro ($4.8 billion) Carrera Capital SIV, spokesman Reinhard Schmid said in an interview.

To understand these stories, it helps to understand the structure of an SIV (Structured Investment Vehicle). (see SIV Accounting for more)

First an SIV has investors - like hedge funds or wealthy individuals - who invest say $1 Billion in the SIV (the equity). Then the SIV issues commercial paper (CP) and medium-term notes (MTN) that pay slightly higher rates than similar duration paper. The typical SIV, according to Fitch, uses 14 times leverage, so in our example the SIV would sell CP and MTN for $14 Billion.

Now the SIV invests this $15 Billion ($1 Billion equity and $14 Billion borrowed) in longer term notes. The idea is simple: borrow short, lend long, hedge the interest rate and credit risks - and the profits flow to the investors in the SIV.

Back to the story: what happens when the CP comes due and no one wants to buy any more? To cover the CP, the SIV might have to sell the longer term assets at a steep discount, and this would trigger a liquidation of the entire SIV. To prevent this "fire sale", the sponsoring banks stepped up and provided the financing to cover the expiring CP.

Of course this limits the banks ability to make other loans (aka Credit Crunch). Perhaps this story is related: Banks Urge UK Clients To Stop Borrowing (hat tip FFIDC)

The banks are urging some of their biggest clients not to draw on standby credit facilities as the sub-prime crisis and squeeze on interbank lending have affected banks' ability to fund themselves.