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Instantaneous Arbitrage and the CAPM
Nielsen, Lars Tyge - 2019
This paper studies the concept of instantaneous arbitrage in continuous time and its relation to the instantaneous CAPM …. Absence of instantaneous arbitrage is equivalent to the existence of a trading strategy which satisfies the CAPM beta pricing … relation in place of the market. Thus the difference between the arbitrage argument and the CAPM argument in Black and Scholes …
Persistent link: https://www.econbiz.de/10012894845
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Put Option Exercise and Short Stock Interest Arbitrage
Barraclough, Kathryn - 2013
U.S. exchange-traded stock options are exercisable before expiration. While put options should frequently be exercised early to earn interest, they are not. In this paper, we explain an early exercise decision rule and then examine actual exercise behavior during the period January 1996 through...
Persistent link: https://www.econbiz.de/10013090248
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Squeezing shorts through social news platforms
Allen, Franklin; Nowak, Eric; Pirovano, Matteo; … - 2021 - This draft: April 12, 2021
At the end of January 2021, a group of stocks listed on US stock exchanges experienced sudden surges in their stock prices, which - coupled with high short interest – led to brief short squeeze episodes. We argue that these short squeezes were the result of coordinated trading by retail...
Persistent link: https://www.econbiz.de/10012502167
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Market efficiency and limits to arbitrage : evidence from the Volkswagen short squeeze
Allen, Franklin; Haas, Marlene; Nowak, Eric; Tengulov, Angel - 2018
On October 26, 2008, Porsche announced a largely unexpected domination plan for Volkswagen. The resulting short squeeze in Volkswagen's stock briefly made it the most valuable listed company in the world. We argue that this was a manipulation designed to save Porsche from insolvency and the...
Persistent link: https://www.econbiz.de/10011875647
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The Virtues and Vices of Equilibrium and the Future of Financial Economics
Farmer, J. Doyne; Geanakoplos, John - Cowles Foundation for Research in Economics, Yale University - 2008
The use of equilibrium models in economics springs from the desire for parsimonious models of economic phenomena that take human reasoning into account. This approach has been the cornerstone of modern economic theory. We explain why this is so, extolling the virtues of equilibrium theory; then...
Persistent link: https://www.econbiz.de/10004976721
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Arbitrage pricing and equilibrium pricing : compatibility conditions
Napp, Clotilde; Jouini, Elyès - Université Paris-Dauphine (Paris IX) - 2001
The problem of fair pricing of contingent claims is well understood in the contex of an arbitrage free, complete … financial market, with perfect information : the so-called arbitrage approach permits to construct a unique valuation operator …
Persistent link: https://www.econbiz.de/10010707894
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Arbitrage pricing and equilibrium pricing : compatibility conditions.
Napp, Clotilde; Jouini, Elyès - Université Paris-Dauphine - 2001
The problem of fair pricing of contingent claims is well understood in the contex of an arbitrage free, complete … financial market, with perfect information : the so-called arbitrage approach permits to construct a unique valuation operator …
Persistent link: https://www.econbiz.de/10008832173
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Understanding Mortgage Spreads
Boyarchenko, Nina; Fuster, Andreas; Lucca, David O. - 2014
Spreads of agency mortgage-backed securities (MBS) vary significantly in the cross section and over time, but the sources of this variation are not well understood. We document that, in the cross section, MBS spreads adjusted for the prepayment option show a pronounced smile with respect to the...
Persistent link: https://www.econbiz.de/10010404146
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"Up" and "Down" Levy Jumps and Market Risk Premia Implications from S&P500 Options
Carverhill, Andrew P. - 2020
We model the S&P500 index options dynamics using the CGMY distribution, with independent "up" and "down" return jumps, and diffusive jump intensities. Allowing the up and down parts to be separately parameterised accounts for the dynamic smirk effect, without correlation between returns and...
Persistent link: https://www.econbiz.de/10012837432
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The Pricing of Market Jumps in the Cross-Section of Stocks and Options
Babaoglu, Kadir - 2018
Market index and individual stock returns exhibit jumps in addition to normal shocks. Equities have exposure to the market and sensitivity to the market is important for explaining equity returns and option prices. I develop a new factor model that explores (i) if a separate beta for market...
Persistent link: https://www.econbiz.de/10012936701