1 definition by Yezer's Homeboy

Top Definition
Foreign Interest Rate Differential, calculated at an annualized rate using the formula FIRD=100*((f/s)^(1/d)-1), where f and s are the forward and spot rate, and d is the forward time in years.
Damn b, that FIRD is gettin all up in my arbitrage.
by Yezer's Homeboy November 23, 2009

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