Abstract

Based on high frequency data, this paper studies the volatility stylized facts of Chinese Treasury bond market (CTBM) in detail, including the best sampling frequency selected to compute the realized volatility, the conditional and unconditional distribution of the returns, the long memory property, the intraday, inter-day pattern of the returns and volatility, the asymmetry of volatility, and so on. The main conclusions about CTBM volatility are provided. 15 minute is best sampling frequency. The RV-based conditional distribution of return is nearly normal. Both return and volatility have significant inter-day but insignificant intraday periodicity. Moreover, the volatility asymmetry existing widely in stock or exchange market is not significant in Chinese Treasury bond market. Key words: Realized volatility, Chinese Treasury bond market, High frequency data Resume: Base sur des donnees de haute frequence, le present article etudie en detail la volatilite des faits stylises du Marche de bon du Tresor chinois (MBTC), comprenant la meilleure frequence de prelevement selectionnee pour calculer la volatilite realisee, la distribution conditionnelle et inconditionnelle des retours, la propriete de longue memoire, le modele intrajour et interjour des retours et la volatilite, l’asymetrie de volatilite, etc. Les conclusions principales sur la volatilite du MBTC sont les suivantes : 15 minutes est la meilleure frequence de prelevement, la distribution conditionnelle RV-base du retour est presque normale. Le retour et l’asymetrie de volatilite ont tous les deux une periodicite inter-jour signifiante, mais une periodicite intrajour insignifiante. D’ailleurs, l’asymetrie de volatilite existant amplement dans la bourse et le marche des changes n’est pas importante sur le Marche de bon du Tresor chinois. Mots-Cles: volatilite realisee, Marche de bon du Tresor chinois, donnees de haute frequence

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