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Date of Publication:2009-01-01
Journal:哈尔滨工业大学学报
Volume:41
Issue:2
Page Number:254-256
ISSN No.:0367-6234
Abstract:By using the trading day logarithmic fluctuation to reflect the market
risk of futures and adopting the value at risk method ( VaR) and
weighted kernel density estimation technology (WKDE) , a single -
contract dynamic fiducial margin determining model is set up to solve
the problem of the contract trading day's fiducial margin based on the
long and short loss unsymmetrical principle. Through using WKDE to
forecast the day's volatility of futures, the proposed model can reflect
the trend of volatility and ensure the precise VaR evalua-tion. This
paper brings forward the idea that the fiducial margin of futures can be
solved by long position VaR and short position VaR respectively. It
simplifies the complexity of the scenario simulation method that
simu-lates different price risk scenarios in SPAN and TIMS system, which
guarantees the precision and accuracy of the model. The practicability
of the model is validated by soybeans d0403 contract.
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