Agrium is a Canadian company with U.S. employees that have a 401k plan. The plan trustee is SEI and all the plan options other than company stock AGU are SEI funds. The 3D scan shows that the 2D scan image seems to miss the Sharpe ratio correlations that produced a Balanced portfolio with more money in company stock 19.2% than even the employee portfolio at 11.4%. The 3D Sharpe ratio surface has compound curvature because company stock not the fixed income options has the highest positive correlation with portfolio Sharpe ratio. The correlation chart shows this clearly. The Balanced portfolio has a higher Sharpe ratio 0.55 than the employee portfolio 0.46 but the 2D scan does not show this at all and it was very confusing to me when I first saw the scan results. At face value this indicates there can be significant differences between 2D and 3D design scan Balanced portfolios depending on the funds in a design scan. More on this later in a TechNote.
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