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1answer
14 views

Why is the Risk Free Rate 1 over Contingent Claim Prices?

Reading Asset Pricing by John Cochrane (2005), in his second chapter he defines the risk free rate as: Rf = 1 / sum [pc(s)] Where pc(s) are state contingent claims, where s is the state of nature ...
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0answers
24 views

Convert 90-Day Tbill to risk free rate on continuous basis

I am trying to use the BS formula to compute the value of a call option. To do that I need the risk free rate on a continuous basis. As far as I know, people typically use the 90 day TBill as a proxy ...
3
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1answer
48 views

Calculate excess returns for Sharpe Ratio with today's or past risk free rate of return?

I am struggling with the calculation of the Sharpe ratio. I am wondering whether to calculate the daily excess returns with today's risk free rate of return or the risk free rates corresponding to the ...
2
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2answers
64 views

Why is a risk-free portfolio desirable?

I am in the process of creating a program that generates status-quo variance-free portfolio (at least theoretically), and my question is pretty fundamental, which may just mean dumb. I am sorry if ...
1
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1answer
84 views

How to calculate weight of two stocks without knowing their correlation?

I have difficulty to solve attached question. The question asks me to find new weight of stocks by just changing standard deviation of the portfolio. I really do not have any idea how to solve it. ...
1
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2answers
62 views

Risk free rate proxy

Why is the US 30 day t bill traditionally used as a risk free rate instead of Euro bonds for example? They are both not going to default surely?
1
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0answers
55 views

Logic between options and risk free rate [closed]

What is the relationship between put option price and risk free rate? And between call options price and risk free rate? Explain the logic? No calculation.
1
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0answers
39 views

How should I use central banks rates in order to compute 2-day forward exchange rate on EURUSD

Good morning, I would like to compute a 2-day forward exchange rate on EURUSD. For that, I have historical data on EURUSD spot price, and I know that theoretically, when maturity is T we have : ...
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2answers
524 views

Which risk free rate is assumed by market when pricing american options?

I'm just started with finance, so maybe my question is dumb or answered elsewhere. Please guide me to relevant materials. According to put-call parity more time to expiration means more difference ...
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2answers
207 views

Why is the LIBOR-market model free of arbitrage?

Recently I have been reading a lot on the market models. One thing that keeps escaping me - why is the Libor-market model (LMM) assumed to e free of aritrage in continuous time ? To me this means ...
2
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0answers
182 views

How to determine risk-free rate of Ecuador?

I have a question in determining the risk-free rate of Ecuador. For developed countries like United States and Great Britain, the risk-free rate can be obtained in financial database such as Reuter or ...