Volatility Indexes and Contracts for Government Bonds and Time Deposits

51 Pages Posted: 26 Apr 2013

See all articles by Antonio Mele

Antonio Mele

University of Lugano; Swiss Finance Institute; Centre for Economic Policy Research (CEPR)

Yoshiki Obayashi

Applied Academics LLC

Date Written: April 23, 2013


The volatilities of Treasury and time deposit markets comove with equity volatility quite heterogeneously over time, with correlations ranging from negative to positive, and marked by periods of rapid movement. What is the price of Treasury volatility or, say, that of the Eurodollar LIBOR? How can we express these prices in a model-free format? Despite the success of the CBOE equity VIX, no counterparts exist for US Treasuries and other government bond markets, or time deposit such as the Eurodollar. Pricing Treasury volatility in a model-free manner is a delicate issue for two reasons. First, volatility is referenced to an asset with fiĀ…nite maturity, a case where standard spanning arguments might fail to apply. Second, and similarly as for time deposits, the markets we are interested in this paper obviously relate to contexts where interest rates are random, which requires tilting the basis assets we wish to price the volatility of. We develop contract designs for variance swaps applying to government bonds and time deposits, and derive model-free indexes of Treasury price and time deposits expected volatility, based on the fair value of the contracts expressed in terms of option prices. We follow market practice and consider both percentage and basis point expected volatility. Basis point volatility can be priced in a model-free format even in the presence of jumps. We provide two algorithms to calculate the indexes through the use of American future options.

Keywords: Interest Rate Volatility, Interest Rate Variance Swaps, Model-Free Pricing, VIX Index, Basis Point Variance, Basis Point Yield Volatility, Quadratic Contracts

JEL Classification: E4, G11, G12, G13

Suggested Citation

Mele, Antonio and Obayashi, Yoshiki, Volatility Indexes and Contracts for Government Bonds and Time Deposits (April 23, 2013). Swiss Finance Institute Research Paper No. 13-26. Available at SSRN: https://ssrn.com/abstract=2255586 or http://dx.doi.org/10.2139/ssrn.2255586

Antonio Mele (Contact Author)

University of Lugano ( email )

Via Giuseppe Buffi 13
Lugano, Ticino 6900

Swiss Finance Institute

c/o University of Geneva
40, Bd du Pont-d'Arve
CH-1211 Geneva 4

Centre for Economic Policy Research (CEPR) ( email )

United Kingdom

Yoshiki Obayashi

Applied Academics LLC ( email )

United States

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