Arbitrage-Free Valuation Framework

Free CFA Level II lesson in Fixed Income. 12 min read, ~1,822 words.

Arbitrage-free principle: bond price = sum of PV of cash flows discounted at benchmark-consistent rates. Binomial tree: models short-rate evolution with lognormal up/down moves linked by r(up) = r(down) x e^(2 x sigma), which keeps rates positive. Calibration first: every benchmark bond must price at par before you value any...

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