How Swap Rates Reflect Forward LIBOR Rates

Summary

The document explains a basic link between an interest rate swap rate and expected future LIBOR rates. A fixed swap rate can be understood as a weighted average of the forward LIBOR rates used across the swap’s payment periods. Because those forward rates reflect expectations for future rates, the swap rate incorporates those expectations as well.

The explanation is qualitative and gives no formula, worked example, or empirical evidence. It also does not specify the weighting convention or discuss discounting, credit spreads, or the assumptions behind interpreting forward rates as expectations. It is a concise conceptual answer rather than a full treatment of swap valuation.

Key ideas

• A fixed swap rate can be represented as a weighted average of forward LIBOR rates.
• Forward LIBOR rates incorporate expectations about future interest rates.
• A swap rate therefore reflects those forward-rate expectations.

Tags

# Swap Curve and Forward Libor Rates


# Swap Curve and Forward Libor Rates












How does the (interest rate) swap curve incorporate forward libor expectations?

## Answer by Magic is in the chain (score 2, accepted)

https://quant.stackexchange.com/a/42046

Swap rate can be viewed as a weighted average of the forward rates. The forward rates would incorporate expectations of future rates, so should a swap rate then. Now a swap paying/receiving LIBOR against fixed rate is a weighted average of the forward LIBOR rates, and hence your statement.

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.