1. I have 500 symbols (supposedly are constituents of the SP500 cash index).
2. I have %% weight of each in the SP500 (questionable quality data though but is close if you weigh them by Market Cap).
3. I calculate Sum(Last x Weight) and I get $120 instead of $180
what am I doing wrong?
2. I have %% weight of each in the SP500 (questionable quality data though but is close if you weigh them by Market Cap).
3. I calculate Sum(Last x Weight) and I get $120 instead of $180
what am I doing wrong?