Rather than issue a plain-vanilla bond with a fixed interest rate, Denver followed its bankers’ suggestions and issued so-called pension certificates with a derivative attached; the debt carried a lower rate but it could also fluctuate if economic conditions changed.
The Denver schools essentially made the same choice some homeowners make: opting for a variable-rate mortgage that offered lower monthly payments, with the risk that they could rise, instead of a conventional, fixed-rate mortgage that offered larger, but unchanging, monthly payments.
The Denver school board unanimously approved the JPMorgan deal and it closed in April 2008, just weeks after a major investment bank, Bear Stearns, failed. In short order, the transaction went awry because of stress in the credit markets, problems with the bond insurer and plummeting interest rates.
Since it struck the deal, the school system has paid $115 million in interest and other fees, at least $25 million more than it originally anticipated.