In: Accounting
Suppose that a trading desk has a one-day 95% value-at-risk of $350,000. What is its five-day 95% value-at-risk? Explain the assumptions that you make.
The N-day Value at Risk(VaR) is calculated as √N times the One day VaR
Therefore, 5 day 95% VaR = One day VaR * (5)^0.5
= 350000* 5^0.5
= $782623.79
Assumptions are:
i) Past records are reasonable indicators of the Future
ii) Day to day Fluctuations are independent (Random walk hypothesis)
iii) Non- negativity i.e. Financial Assets cannot have negative prices
iv) Time Consistency : Single period assumptions hold over multiple periods
v) Fluctuations in Daily returns follow a normal distribution
5 day 95% VaR = $782623.79