In: Finance
Consider an MNC that is exposed to the Sri Lankan Rupee (Rs) and the Myanmar Kyat (MMK). 40% of the MNC's funds are Sri Lankan Rupees and rest are Myanmar Kyats. The standard deviation of exchange movements is 3.5% for Rupees and 11% for pounds. The correlation coefficient between movements in the value of the Taiwan dollar and the pound is .19. Based on this information, the standard deviation of this two-currency portfolio is approximately: A. 12.84 %. B. 7.71 %. C. 7.00 %. D. 5.55 %. E. 3.23 %.
Standard Deviation of Sri Lankan Rupee = 3.5%
Standard Deviation of Myanmar Kyat = 11%
Correlation coefficient between Sri Lankan Rupee & Myanmar Kyat = 0.19
Weight of Sri Lankan Rupee = 40%
Weight of Myanmar Kyat = 1 - Weight of Sri Lankan Rupee
Weight of Myanmar Kyat = 1 - 40%
Weight of Myanmar Kyat = 60%
Standard Deviation of Portfolio = (Weight of Sri Lankan Rupee * Standard Deviation of Sri Lankan Rupee)2 + (Weight of Myanmar Kyat * Standard Deviation of Myanmar Kyat )2 + 2 * Weight of Sri Lankan Rupee * Weight of Myanmar Kyat * Standard Deviation of Sri Lankan Rupee* Standard Deviation of Myanmar Kyat * Correlation coefficient between Sri Lankan Rupee & Myanmar Kyat
Standard Deviation of Portfolio = (40% * 3.5%)2 + (60% * 11%)2 + (2 * 40% * 60% * 3.5% * 11% * 0.19)
Standard Deviation of Portfolio = 0.000196 + 0.004356 + 0.00035112
Standard Deviation of Portfolio = 0.00490312
Standard Deviation of Portfolio = 0.07 or 7%