Chapter 2 - NUE's accounting measures

According to E*Trade, NUE's simple accounting measures supports a company that is well run and in good financial condition:

I decided to calculate the Adjusted Accounting Measure to further review NUE's performance.  E*TRADE calculates the ROIC to be 4.49%.  I calculated the WACC using the S&Ps market return rate and determined that NUE's ROIC is lower than its WACC, which I found to be 11.71%, meaning NUE is not exhibiting superior performance because ROIC is greater than WACC.  That said, when I used the Iron&Steel industries market return, NUE's ROIC was greater than its WACC, showing NUE does have superior performance in its industry.