The firm's problems come mainly from having bet all to build up a fixed-income business.

ECONOMIST: Peregrine Investments

As for Swapnote, it is a cash-settled bet on swap prices that are fixed daily by the International Swaps and Derivatives Association.

ECONOMIST: Swap futures

"I'd bet a cheeseburger that only the fixed combination will be available for quite a while, " says Jerry Avorn of Harvard Medical School.

FORBES: Magazine Article

The US government has then traded a fixed rate of 0.57 for a bet on the variable rate of US T-Bills over the the next 10 years.

FORBES: Connect

I'd bet Linux administrators would demand that the mail client be fixed, or switch.

CNN: Linux users unscathed by ILOVEYOU