STOCK LOAN VALUATION UNDER A REGIME-SWITCHING MODEL WITHMEAN-REVERTING AND FINITE MATURITY

David PRAGER; Qing ZHANG

系统科学与复杂性(英文) ›› 2010, Vol. 23 ›› Issue (3) : 572-583.

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PDF(377 KB)
系统科学与复杂性(英文) ›› 2010, Vol. 23 ›› Issue (3) : 572-583. DOI: 10.1007/s11424-010-0146-7
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STOCK LOAN VALUATION UNDER A REGIME-SWITCHING MODEL WITHMEAN-REVERTING AND FINITE MATURITY

    David PRAGER, Qing ZHANG
作者信息 +

STOCK LOAN VALUATION UNDER A REGIME-SWITCHING MODEL WITHMEAN-REVERTING AND FINITE MATURITY

    David PRAGER, Qing ZHANG
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摘要

Stock loans are business contracts between borrowers and lenders in which the borrower uses shares of stock as collateral for the loan. Since the value of the collateral is subject to wide and frequent price swings, valuing such a transaction behaves more like an option pricing problem than a debt valuation problem. This paper will list, prove, and analyze formulas for stock loan valuation with finite horizon under various stock models, including classical geometric Brownian motion, mean-reverting, and two-state regime-switching with both mean-reverting and geometric Brownian motion states. Numerical examples are reported to illustrate the results.

Abstract

Stock loans are business contracts between borrowers and lenders in which the borrower uses shares of stock as collateral for the loan. Since the value of the collateral is subject to wide and frequent price swings, valuing such a transaction behaves more like an option pricing problem than a debt valuation problem. This paper will list, prove, and analyze formulas for stock loan valuation with finite horizon under various stock models, including classical geometric Brownian motion, mean-reverting, and two-state regime-switching with both mean-reverting and geometric Brownian motion states. Numerical examples are reported to illustrate the results.

关键词

Mean reversion / regime switching / stock loan.

Key words

Mean reversion / regime switching / stock loan.

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David PRAGER , Qing ZHANG. STOCK LOAN VALUATION UNDER A REGIME-SWITCHING MODEL WITHMEAN-REVERTING AND FINITE MATURITY. 系统科学与复杂性(英文), 2010, 23(3): 572-583 https://doi.org/10.1007/s11424-010-0146-7
David PRAGER , Qing ZHANG. STOCK LOAN VALUATION UNDER A REGIME-SWITCHING MODEL WITHMEAN-REVERTING AND FINITE MATURITY. Journal of Systems Science and Complexity, 2010, 23(3): 572-583 https://doi.org/10.1007/s11424-010-0146-7
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