The top 5 stocks in the S&P 500 index, when ranked by market capitalization, make up 22% of the total market capitalization of the S&P 500 index.

Numerical estimates of the mean (or expected) rates of return values of these top five stocks, expressed in decimal (not percentage) form, are listed in the table below.

STOCK	TICKER	MEAN RETURN
Apple, Inc.	AAPL	0.69
Amazon.com Inc.	AMZN	0.65
Microsoft Corp.	MSFT	0.44
Alphabet, Inc.	GOOG	0.36
Facebook, Inc.	FB	0.41

Furthermore, the variance of returns (entries on the main diagonal) and covariances between returns of these top five stocks are as follows:

	AAPL	AMZN	MSFT	GOOG	FB
AAPL	0.21	0.12	0.17	0.13	0.16
AMZN	0.12	0.15	0.12	0.10	0.12
MSFT	0.17	0.12	0.19	0.14	0.15
GOOG	0.13	0.10	0.14	0.15	0.14
FB	0.16	0.12	0.15	0.14	0.21

Suppose we desire to invest in the five stocks in the table in a way that simultaneously minimizes the portfolio risk and maximizes the portfolio expected return where r_bar, is the mean return for stock i given in the table above. One method for accomplishing this objective is to find the optimal portfolio weights w_i, 1

Minimize

Subject to

Note that short positions (negative weights) are permissible and the sum of all the weights must be equal to one.

What is the optimal portfolio weight for Amazon.com, Inc.

Round to 2 decimal place

Ivumerical estimates or tne mean (or expected) rates or return values or these top nve stocks, expressed in decimal (not percentage) form, are listed in the table below. Furthermore, the variance of returns (entries on the main diagonal) and covariances between returns of these top five stocks are as follows: Suppose we desire to invest in the five stocks in the table in a way that simultaneously minimizes the portfolio risk and maximizes the portfolio expected return i=15wiri, where ri is the mean return for stock i given in the table above. One method for accomplishing this objective is to find the optimal portfolio weights wi,1i5 that solve the following problem: minimizei,j=15wiwjiji=15wiri subject to i=15wi=1 Note that short positions (negative weights) are permissible and the sum of all the weights must be equal to one. What is the optimal portfolio weight for Amazon.com, Inc. (ticker: AMZN)? Please round your numerical answer to one decimal place