Created
August 6, 2020 20:35
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from utils import * | |
def display_as_percentage(val): | |
return '{:.1f}%'.format(val * 100) | |
amazon_prices = [1699.8, 1777.44, 2012.71, 2003.0, 1598.01, 1690.17, 1501.97, 1718.73, 1639.83, 1780.75, 1926.52, 1775.07, 1893.63] | |
ebay_prices = [35.98, 33.2, 34.35, 32.77, 28.81, 29.62, 27.86, 33.39, 37.01, 37.0, 38.6, 35.93, 39.5] | |
# Write code here | |
my_value = 0.075 | |
print('The value formatted as a percentage is', display_as_percentage(my_value)) | |
# calculate the monthly returns of the 2 stocks | |
def get_returns(prices): | |
returns=[] | |
for i in range(len(prices)-1): | |
start_price = prices[i] | |
end_price = prices[i+1] | |
log_return = calculate_log_return(start_price, end_price) | |
returns.append(log_return) | |
return returns | |
amazon_returns = get_returns(amazon_prices) | |
ebay_returns = get_returns(ebay_prices) | |
print("the monthly returns of Amazon is " + display_as_percentage(amazon_returns[0]) ) | |
print("the monthly returns of Ebay is " + display_as_percentage(ebay_returns[0]) ) | |
# calculate the annual returns of the 2 stocks | |
annual_rate_month_amazon = sum(amazon_returns) | |
print("the annual returns of Amazon is " + display_as_percentage(annual_rate_month_amazon)) | |
annual_rate_month_ebay = sum(ebay_returns) | |
print("the annual returns of Ebay is " + display_as_percentage(annual_rate_month_ebay)) | |
amazon_variance=calculate_variance(amazon_prices) | |
print("the variance of Amazon monthly returns " + str(round(amazon_variance,2))) | |
ebay_variance=calculate_variance(ebay_prices) | |
print("the variance of Ebay monthly returns " + str(round(ebay_variance,2))) | |
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